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This document presents the calculation of the electric field and electric potential in a coaxial cable using Maxwell's equations in the electrostatic case in an analytical and simulated manner using COMSOL Multiphysics.

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Class 12 Cbse Physics Sample Paper 2010 Model 3

cbse class 12 physics sample paper 2010 model 3 - http://cbse.edurite.com/cbse-sample-papers-2010.html

Optimization of Surface Impedance for Reducing Surface Waves between Antennas

International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.

Other RLC resonant circuits and Bode Plots 2024.pptx

This document discusses resonant RLC circuits and their characteristics. It introduces five key parameters: resonant frequency (ωo), quality factor (Q), bandwidth (BW), and cutoff frequencies (ω1, ω2). It then provides an example calculation for a parallel RLC circuit. The document also discusses two methods for deriving the filter parameters of an RLC circuit with internal resistance: the direct method using circuit equations, and an equivalent circuit method where the series branch is replaced with a parallel resistance and inductance. Finally, it briefly introduces cascaded filters and Bode plots as tools for analyzing frequency response.

Lecture 09 em transmission lines

This document discusses electromagnetic transmission lines and the Smith chart. It introduces equivalent electrical circuit models for coaxial cables, microstrip lines, and twin lead transmission lines using distributed inductors and capacitors. The telegrapher's equations are derived from Kirchhoff's laws. For sinusoidal waves on the transmission lines, phasor analysis is used. Key concepts covered include characteristic impedance, propagation velocity, wavelength, and modeling forward and backward traveling waves.

ch09.pdf

The document provides information about decomposing electromagnetic fields in waveguides into longitudinal and transverse components. It introduces the key concepts of cutoff frequency, cutoff wavelength, propagation constant, transverse impedances, and relates them through important equations. Several types of waveguide modes (TEM, TE, TM, hybrid) are also defined based on which field components are nonzero.

Cbse class 12 physics sample paper 02 (for 2014)

The document provides a sample physics question paper for Class 12 with 29 questions ranging from 1 to 5 marks. It includes questions from various topics in physics like electromagnetism, optics, modern physics, semiconductor devices, communication systems, and electrical circuits. The paper tests concepts, calculations, principles, diagrams, and applications of concepts across different areas of the physics syllabus. It provides guidelines for time, marks distribution and instructions for answering the questions.

Class 12 Cbse Physics Sample Paper 2013 Model 2

Cbse Class 12 Physics Sample Paper 2013 Model 2 - http://cbse.edurite.com/cbse-sample-papers-2013.html

Cbse Class 12 Physics Sample Paper 2010 Model 1

cbse 12 class physics sample paper 2010 model 1 - http://cbse.edurite.com/cbse-sample-papers-2010.html

Class 12 Cbse Physics Sample Paper 2010 Model 3

cbse class 12 physics sample paper 2010 model 3 - http://cbse.edurite.com/cbse-sample-papers-2010.html

Optimization of Surface Impedance for Reducing Surface Waves between Antennas

International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.

Other RLC resonant circuits and Bode Plots 2024.pptx

This document discusses resonant RLC circuits and their characteristics. It introduces five key parameters: resonant frequency (ωo), quality factor (Q), bandwidth (BW), and cutoff frequencies (ω1, ω2). It then provides an example calculation for a parallel RLC circuit. The document also discusses two methods for deriving the filter parameters of an RLC circuit with internal resistance: the direct method using circuit equations, and an equivalent circuit method where the series branch is replaced with a parallel resistance and inductance. Finally, it briefly introduces cascaded filters and Bode plots as tools for analyzing frequency response.

Lecture 09 em transmission lines

This document discusses electromagnetic transmission lines and the Smith chart. It introduces equivalent electrical circuit models for coaxial cables, microstrip lines, and twin lead transmission lines using distributed inductors and capacitors. The telegrapher's equations are derived from Kirchhoff's laws. For sinusoidal waves on the transmission lines, phasor analysis is used. Key concepts covered include characteristic impedance, propagation velocity, wavelength, and modeling forward and backward traveling waves.

ch09.pdf

The document provides information about decomposing electromagnetic fields in waveguides into longitudinal and transverse components. It introduces the key concepts of cutoff frequency, cutoff wavelength, propagation constant, transverse impedances, and relates them through important equations. Several types of waveguide modes (TEM, TE, TM, hybrid) are also defined based on which field components are nonzero.

Cbse class 12 physics sample paper 02 (for 2014)

The document provides a sample physics question paper for Class 12 with 29 questions ranging from 1 to 5 marks. It includes questions from various topics in physics like electromagnetism, optics, modern physics, semiconductor devices, communication systems, and electrical circuits. The paper tests concepts, calculations, principles, diagrams, and applications of concepts across different areas of the physics syllabus. It provides guidelines for time, marks distribution and instructions for answering the questions.

Class 12 Cbse Physics Sample Paper 2013 Model 2

Cbse Class 12 Physics Sample Paper 2013 Model 2 - http://cbse.edurite.com/cbse-sample-papers-2013.html

Cbse Class 12 Physics Sample Paper 2010 Model 1

cbse 12 class physics sample paper 2010 model 1 - http://cbse.edurite.com/cbse-sample-papers-2010.html

nothing

This document contains physics examination papers from 2008-2012 administered by the Central Board of Secondary Education (CBSE) in Delhi, India. It lists the contents which include CBSE examination papers from Delhi and All India in those years, as well as foreign papers. A sample paper from the 2008 Delhi exam is then provided, consisting of 30 multiple choice questions testing concepts in physics.

Modeling of solar array and analyze the current transient

Spacecraft bus voltage is regulated by power
conditioning unit using switching shunt voltage regulator having
solar array cells as the primary source of power. This source
switches between the bus loads and the shunt switch for fine
control of spacecraft bus voltage. The effect of solar array cell
capacitance [5][6] along with inductance and resistance of the
interface wires between solar cells and power conditioning
unit[1], generates damped sinusoidal currents superimposed on
the short circuit current of solar cell when shunted through
switch. The peak current stress on the shunt switch is to be
considered in the selection of shunt switch in power conditioning
unit. The analysis of current transients of shunt switch in PCU
considering actual spacecraft interface wire length by
illumination of solar panel (combination of series and parallel
solar cells) is difficult with hardware simulation. Software
simulation by modeling solar cell is carried out for a single string
(one parallel) in Pspice [6]. Since in spacecrafts number of
parallels and interface cable length are variable parameters the
analysis of current transients of shunt switch is carried out by
modeling solar array with the help of solar cell model[6] for the
actual spacecraft condition.

Modeling of solar array and analyze the current transient response of shunt s...

Spacecraft bus voltage is regulated by power
conditioning unit using switching shunt voltage regulator having
solar array cells as the primary source of power. This source
switches between the bus loads and the shunt switch for fine
control of spacecraft bus voltage. The effect of solar array cell
capacitance [5][6] along with inductance and resistance of the
interface wires between solar cells and power conditioning
unit[1], generates damped sinusoidal currents superimposed on
the short circuit current of solar cell when shunted through
switch. The peak current stress on the shunt switch is to be
considered in the selection of shunt switch in power conditioning
unit. The analysis of current transients of shunt switch in PCU
considering actual spacecraft interface wire length by
illumination of solar panel (combination of series and parallel
solar cells) is difficult with hardware simulation. Software
simulation by modeling solar cell is carried out for a single string
(one parallel) in Pspice [6]. Since in spacecrafts number of
parallels and interface cable length are variable parameters the
analysis of current transients of shunt switch is carried out by
modeling solar array with the help of solar cell model[6] for the
actual spacecraft condition.

7- 1st semester_BJT_AC_Analysis (re model)-1.pdf

The document discusses transistor AC modeling and analysis. It provides two common models used - the re equivalent model and h-parameter model. It then discusses important procedures for small signal AC analysis including replacing DC sources with shorts and capacitors with opens. Common configurations like common-emitter, common-base, and examples are analyzed. Input impedance, output impedance, and voltage gain are determined for different configurations both with and without bypassing the emitter resistor.

Lineas equipotenciales ( lectura)

The document describes an experiment to study equipotential lines around electrodes of different shapes placed in an electrolytic tank and subjected to a voltage difference. Measurements were taken with a multimeter to record potential differences at points on the tank. Electrodes of bars and rings were used at a voltage of 3.0 ± 0.2 V. Data points of equal potential were collected and used to determine equipotential lines on the tank plane. Graphs of the equipotential lines showed them curving closer to the electrodes and farther apart at higher potentials.

Research on Transformer Core Vibration under DC Bias Based on Multi-field Cou...

The Mathematical models for DC bias vibration analysis of the transformer core are developed in this paper. The model is combined into multi-physical field coupling modeling for vibration analysis of the transformer. By applying the primary voltage as excitation and under different DC bias, vibrations of the transformer core is simulated and analyzed.

635Project

This document describes a simulation of electro-osmosis flow control in a microchannel. It establishes models of a packed rectangular microchannel using SolidWorks and MATLAB. The first model simulates flow driven by pressure in a macrochannel using SolidWorks. The second model simulates three KCl solutions in a subchannel driven by electroosmosis, solving the coupled Poisson and Navier-Stokes equations. It determines governing equations, nondimensionalizes parameters, and establishes boundary conditions involving zeta potential and the electrical double layer. The goal is to compare microchannel and macrochannel flow and understand how to control flow velocity using applied voltage.

Investigation on EM radiations from interconnects in integrated circuits

This document presents an investigation into electromagnetic radiations from interconnects in integrated circuits. It begins with an introduction describing how interconnect behavior becomes more complex as operating frequencies increase. A mathematical model is then developed using Maxwell's equations to model electromagnetic interactions on transmission line structures. Parameters like line spacing, number of tracks, and frequency are modeled. Results from simulations of parallel and stacked transmission lines are discussed. The modeling aims to better understand electromagnetic compatibility issues and minimize disturbances in integrated circuit design.

REPORT2- electric and equipotentials

This report describes two experiments measuring equipotential lines and electric fields between parallel plate conductors and concentric cylindrical electrodes. In both experiments, equipotential lines were marked on conducting paper connected to an 8V power supply. The electric potential and estimated field were measured and plotted against the predictions of relevant equations. For parallel plates, the potential graph matched predictions linearly but the field graph was less accurate. For concentric cylinders, both graphs matched predictions closely except for points near the disc due to measurement limitations. The experiments supported the theoretical relationships between electric potential and field.

Kinetics of X-ray conductivity for an ideal wide-gap semiconductor irradiated...

This document discusses the development of a kinetic theory to describe the X-ray conductivity (XRC) of semiconductors and dielectrics when irradiated by X-rays. It begins by outlining the need for such a theory and which characteristics it should describe. It then presents the initial stages of developing the theory, including modeling an ideal semiconductor at low excitation levels and deriving expressions for the spatial distribution of free electrons and holes and their lifetimes. The document also examines how the electric field of free charge carriers affects the distributions as excitation increases and considers incorporating the Coulomb interaction between carriers.

Physics sqp

This document contains a sample physics question paper for Class 12 with 26 questions across 5 sections (A-E). It provides general instructions, details of questions in each section, and values of important physical constants. Section A contains 5 one-mark questions, Section B has 5 two-mark questions, Section C has 12 three-mark questions, Section D has 1 four-mark question and Section E contains 3 five-mark questions. The document tests students' understanding of concepts in electricity, magnetism, electromagnetic waves, optics, modern physics and electronics.

05617901

This document proposes and validates an equivalent circuit model for a wireless power transfer system capable of transferring 220W of power over a 30cm air gap with 95% efficiency. The model represents the transmitter and receiver coils as inductors with low mutual coupling. Analytical expressions for the model are derived and validated using finite element analysis and experimental results. Loss analysis is also performed to investigate skin effect and proximity effect losses at high operating frequencies. A new coil spatial design is proposed to reduce such losses compared to conventional coil designs.

Lecture 06 maxwell eqn

This document discusses Maxwell's equations and time-harmonic electromagnetic fields. It begins by presenting Maxwell's four equations describing electric and magnetic fields. It then discusses the constitutive relations relating the fields to material properties. Maxwell's equations can describe fields in linear and nonlinear media. The equations are also presented in integral form. Examples are provided on applying Maxwell's equations to derive the diffusion equation and skin depth. Poynting's theorem is then introduced, relating power flow to energy storage and dissipation. Finally, time-harmonic fields are discussed, with Maxwell's equations expressed using phasors. Power flow is defined for time-harmonic fields using complex conjugates.

wireless power transfer

This document proposes a system for wireless power transfer to electric vehicles using magnetic resonant couplings. It presents experimental results on helical antennas that could be installed on electric vehicles. The experiments show that:
1) Resonant frequencies of the transmitting and receiving antennas change depending on the air gap between them, but maximum efficiency remains high even for large air gaps.
2) Efficiency remains around 95-97% for air gaps up to 200mm and remains high even when coupling coefficients are weak at large air gaps.
3) Efficiency remains constant, around 95-96%, for varying power levels from -15dBm to 100W, showing that efficiency does not depend on power as predicted by equivalent circuit models.

A011120106

This document summarizes a study on wireless power transfer using induction technique. It describes how electrical power is converted to magnetic energy in a transmitter coil, generating a time-varying magnetic field. When a receiver coil is placed within this field, the magnetic energy is reverted back to electrical energy to power a load without the use of wires. The document outlines the circuit designs for the transmitter and receiver, and analyzes the relationship between current, magnetic flux, and power transfer through mathematical equations and simulation results. Experimental data shows different voltages induced in receiver coils with varying numbers of turns. The summary concludes that induction-based wireless power transfer over short distances is possible by controlling current harmonics to reduce power losses.

Semiconductor nanodevices

This document discusses semiconductor nanostructures, specifically summarizing key concepts about quantum wells, wires, and dots. It begins by providing a brief history of semiconductors and introducing how nanostructures exhibit quantum effects. It then discusses the basic physics behind semiconductor nanostructures, including De Broglie wavelength, quantum wells, and how the density of states varies between 3D, 2D, 1D and 0D structures. Finally, it covers fabrication methods like molecular beam epitaxy that are used to grow nanostructures through layer-by-layer deposition in an ultra-high vacuum.

Microelectromechanical Assignment Help

My name is Spenser K. I am associated with mechanicalengineeringassignmenthelp.com for the past 12 years and have been helping the mechanical engineering students with their Microelectromechanical Assignment. I have a Ph.D. in Mechatronics Engineering from RMIT University Australia.

Solution a ph o 1

This document provides solutions to theoretical physics problems from the 1st Asian Physics Olympiad held in Karawaci, Indonesia in April 2000. The solutions include:
1) Deriving an expression for the relative angular velocity of Jupiter and Earth and calculating the relative velocity.
2) Calculating the detection limit of a radioactive source using an ionization chamber and determining the necessary voltage pulse amplifier gain.
3) Using Gauss' law to calculate the electric field and potential between the plates of a parallel plate capacitor and deriving an expression for the capacitance per unit length.

IB Internal Assessment Example

This document summarizes an experiment to verify Broglie's relations, which state that the wavelength of an electron is inversely proportional to its momentum or kinetic energy. The experiment measured the radii of diffraction rings produced when electrons struck a graphite target. Plotting the inverse square root of voltage against radii produced linear relationships, confirming Broglie's prediction and demonstrating the wave-particle duality of electrons. While limited data points could be improved, measurement precision was high. The results substantiated the de Broglie hypothesis relating electron wavelength to momentum.

Design of rotating electrical machines

This course includes a detailed step by step approach to design rotating electrical machines like induction motor and DC machines.

Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...

This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.

一比一原版(爱大毕业证书)爱荷华大学毕业证如何办理

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nothing

This document contains physics examination papers from 2008-2012 administered by the Central Board of Secondary Education (CBSE) in Delhi, India. It lists the contents which include CBSE examination papers from Delhi and All India in those years, as well as foreign papers. A sample paper from the 2008 Delhi exam is then provided, consisting of 30 multiple choice questions testing concepts in physics.

Modeling of solar array and analyze the current transient

Spacecraft bus voltage is regulated by power
conditioning unit using switching shunt voltage regulator having
solar array cells as the primary source of power. This source
switches between the bus loads and the shunt switch for fine
control of spacecraft bus voltage. The effect of solar array cell
capacitance [5][6] along with inductance and resistance of the
interface wires between solar cells and power conditioning
unit[1], generates damped sinusoidal currents superimposed on
the short circuit current of solar cell when shunted through
switch. The peak current stress on the shunt switch is to be
considered in the selection of shunt switch in power conditioning
unit. The analysis of current transients of shunt switch in PCU
considering actual spacecraft interface wire length by
illumination of solar panel (combination of series and parallel
solar cells) is difficult with hardware simulation. Software
simulation by modeling solar cell is carried out for a single string
(one parallel) in Pspice [6]. Since in spacecrafts number of
parallels and interface cable length are variable parameters the
analysis of current transients of shunt switch is carried out by
modeling solar array with the help of solar cell model[6] for the
actual spacecraft condition.

Modeling of solar array and analyze the current transient response of shunt s...Spacecraft bus voltage is regulated by power
conditioning unit using switching shunt voltage regulator having
solar array cells as the primary source of power. This source
switches between the bus loads and the shunt switch for fine
control of spacecraft bus voltage. The effect of solar array cell
capacitance [5][6] along with inductance and resistance of the
interface wires between solar cells and power conditioning
unit[1], generates damped sinusoidal currents superimposed on
the short circuit current of solar cell when shunted through
switch. The peak current stress on the shunt switch is to be
considered in the selection of shunt switch in power conditioning
unit. The analysis of current transients of shunt switch in PCU
considering actual spacecraft interface wire length by
illumination of solar panel (combination of series and parallel
solar cells) is difficult with hardware simulation. Software
simulation by modeling solar cell is carried out for a single string
(one parallel) in Pspice [6]. Since in spacecrafts number of
parallels and interface cable length are variable parameters the
analysis of current transients of shunt switch is carried out by
modeling solar array with the help of solar cell model[6] for the
actual spacecraft condition.

7- 1st semester_BJT_AC_Analysis (re model)-1.pdf

The document discusses transistor AC modeling and analysis. It provides two common models used - the re equivalent model and h-parameter model. It then discusses important procedures for small signal AC analysis including replacing DC sources with shorts and capacitors with opens. Common configurations like common-emitter, common-base, and examples are analyzed. Input impedance, output impedance, and voltage gain are determined for different configurations both with and without bypassing the emitter resistor.

Lineas equipotenciales ( lectura)

The document describes an experiment to study equipotential lines around electrodes of different shapes placed in an electrolytic tank and subjected to a voltage difference. Measurements were taken with a multimeter to record potential differences at points on the tank. Electrodes of bars and rings were used at a voltage of 3.0 ± 0.2 V. Data points of equal potential were collected and used to determine equipotential lines on the tank plane. Graphs of the equipotential lines showed them curving closer to the electrodes and farther apart at higher potentials.

Research on Transformer Core Vibration under DC Bias Based on Multi-field Cou...

The Mathematical models for DC bias vibration analysis of the transformer core are developed in this paper. The model is combined into multi-physical field coupling modeling for vibration analysis of the transformer. By applying the primary voltage as excitation and under different DC bias, vibrations of the transformer core is simulated and analyzed.

635Project

This document describes a simulation of electro-osmosis flow control in a microchannel. It establishes models of a packed rectangular microchannel using SolidWorks and MATLAB. The first model simulates flow driven by pressure in a macrochannel using SolidWorks. The second model simulates three KCl solutions in a subchannel driven by electroosmosis, solving the coupled Poisson and Navier-Stokes equations. It determines governing equations, nondimensionalizes parameters, and establishes boundary conditions involving zeta potential and the electrical double layer. The goal is to compare microchannel and macrochannel flow and understand how to control flow velocity using applied voltage.

Investigation on EM radiations from interconnects in integrated circuits

This document presents an investigation into electromagnetic radiations from interconnects in integrated circuits. It begins with an introduction describing how interconnect behavior becomes more complex as operating frequencies increase. A mathematical model is then developed using Maxwell's equations to model electromagnetic interactions on transmission line structures. Parameters like line spacing, number of tracks, and frequency are modeled. Results from simulations of parallel and stacked transmission lines are discussed. The modeling aims to better understand electromagnetic compatibility issues and minimize disturbances in integrated circuit design.

REPORT2- electric and equipotentials

This report describes two experiments measuring equipotential lines and electric fields between parallel plate conductors and concentric cylindrical electrodes. In both experiments, equipotential lines were marked on conducting paper connected to an 8V power supply. The electric potential and estimated field were measured and plotted against the predictions of relevant equations. For parallel plates, the potential graph matched predictions linearly but the field graph was less accurate. For concentric cylinders, both graphs matched predictions closely except for points near the disc due to measurement limitations. The experiments supported the theoretical relationships between electric potential and field.

Kinetics of X-ray conductivity for an ideal wide-gap semiconductor irradiated...

This document discusses the development of a kinetic theory to describe the X-ray conductivity (XRC) of semiconductors and dielectrics when irradiated by X-rays. It begins by outlining the need for such a theory and which characteristics it should describe. It then presents the initial stages of developing the theory, including modeling an ideal semiconductor at low excitation levels and deriving expressions for the spatial distribution of free electrons and holes and their lifetimes. The document also examines how the electric field of free charge carriers affects the distributions as excitation increases and considers incorporating the Coulomb interaction between carriers.

Physics sqp

This document contains a sample physics question paper for Class 12 with 26 questions across 5 sections (A-E). It provides general instructions, details of questions in each section, and values of important physical constants. Section A contains 5 one-mark questions, Section B has 5 two-mark questions, Section C has 12 three-mark questions, Section D has 1 four-mark question and Section E contains 3 five-mark questions. The document tests students' understanding of concepts in electricity, magnetism, electromagnetic waves, optics, modern physics and electronics.

05617901

This document proposes and validates an equivalent circuit model for a wireless power transfer system capable of transferring 220W of power over a 30cm air gap with 95% efficiency. The model represents the transmitter and receiver coils as inductors with low mutual coupling. Analytical expressions for the model are derived and validated using finite element analysis and experimental results. Loss analysis is also performed to investigate skin effect and proximity effect losses at high operating frequencies. A new coil spatial design is proposed to reduce such losses compared to conventional coil designs.

Lecture 06 maxwell eqn

This document discusses Maxwell's equations and time-harmonic electromagnetic fields. It begins by presenting Maxwell's four equations describing electric and magnetic fields. It then discusses the constitutive relations relating the fields to material properties. Maxwell's equations can describe fields in linear and nonlinear media. The equations are also presented in integral form. Examples are provided on applying Maxwell's equations to derive the diffusion equation and skin depth. Poynting's theorem is then introduced, relating power flow to energy storage and dissipation. Finally, time-harmonic fields are discussed, with Maxwell's equations expressed using phasors. Power flow is defined for time-harmonic fields using complex conjugates.

wireless power transfer

This document proposes a system for wireless power transfer to electric vehicles using magnetic resonant couplings. It presents experimental results on helical antennas that could be installed on electric vehicles. The experiments show that:
1) Resonant frequencies of the transmitting and receiving antennas change depending on the air gap between them, but maximum efficiency remains high even for large air gaps.
2) Efficiency remains around 95-97% for air gaps up to 200mm and remains high even when coupling coefficients are weak at large air gaps.
3) Efficiency remains constant, around 95-96%, for varying power levels from -15dBm to 100W, showing that efficiency does not depend on power as predicted by equivalent circuit models.

A011120106

This document summarizes a study on wireless power transfer using induction technique. It describes how electrical power is converted to magnetic energy in a transmitter coil, generating a time-varying magnetic field. When a receiver coil is placed within this field, the magnetic energy is reverted back to electrical energy to power a load without the use of wires. The document outlines the circuit designs for the transmitter and receiver, and analyzes the relationship between current, magnetic flux, and power transfer through mathematical equations and simulation results. Experimental data shows different voltages induced in receiver coils with varying numbers of turns. The summary concludes that induction-based wireless power transfer over short distances is possible by controlling current harmonics to reduce power losses.

Semiconductor nanodevices

This document discusses semiconductor nanostructures, specifically summarizing key concepts about quantum wells, wires, and dots. It begins by providing a brief history of semiconductors and introducing how nanostructures exhibit quantum effects. It then discusses the basic physics behind semiconductor nanostructures, including De Broglie wavelength, quantum wells, and how the density of states varies between 3D, 2D, 1D and 0D structures. Finally, it covers fabrication methods like molecular beam epitaxy that are used to grow nanostructures through layer-by-layer deposition in an ultra-high vacuum.

Microelectromechanical Assignment Help

My name is Spenser K. I am associated with mechanicalengineeringassignmenthelp.com for the past 12 years and have been helping the mechanical engineering students with their Microelectromechanical Assignment. I have a Ph.D. in Mechatronics Engineering from RMIT University Australia.

Solution a ph o 1

This document provides solutions to theoretical physics problems from the 1st Asian Physics Olympiad held in Karawaci, Indonesia in April 2000. The solutions include:
1) Deriving an expression for the relative angular velocity of Jupiter and Earth and calculating the relative velocity.
2) Calculating the detection limit of a radioactive source using an ionization chamber and determining the necessary voltage pulse amplifier gain.
3) Using Gauss' law to calculate the electric field and potential between the plates of a parallel plate capacitor and deriving an expression for the capacitance per unit length.

IB Internal Assessment Example

This document summarizes an experiment to verify Broglie's relations, which state that the wavelength of an electron is inversely proportional to its momentum or kinetic energy. The experiment measured the radii of diffraction rings produced when electrons struck a graphite target. Plotting the inverse square root of voltage against radii produced linear relationships, confirming Broglie's prediction and demonstrating the wave-particle duality of electrons. While limited data points could be improved, measurement precision was high. The results substantiated the de Broglie hypothesis relating electron wavelength to momentum.

Design of rotating electrical machines

This course includes a detailed step by step approach to design rotating electrical machines like induction motor and DC machines.

nothing

nothing

Modeling of solar array and analyze the current transient

Modeling of solar array and analyze the current transient

Modeling of solar array and analyze the current transient response of shunt s...

Modeling of solar array and analyze the current transient response of shunt s...

7- 1st semester_BJT_AC_Analysis (re model)-1.pdf

7- 1st semester_BJT_AC_Analysis (re model)-1.pdf

Lineas equipotenciales ( lectura)

Lineas equipotenciales ( lectura)

Research on Transformer Core Vibration under DC Bias Based on Multi-field Cou...

Research on Transformer Core Vibration under DC Bias Based on Multi-field Cou...

635Project

635Project

Investigation on EM radiations from interconnects in integrated circuits

Investigation on EM radiations from interconnects in integrated circuits

REPORT2- electric and equipotentials

REPORT2- electric and equipotentials

Kinetics of X-ray conductivity for an ideal wide-gap semiconductor irradiated...

Kinetics of X-ray conductivity for an ideal wide-gap semiconductor irradiated...

Physics sqp

Physics sqp

05617901

05617901

Lecture 06 maxwell eqn

Lecture 06 maxwell eqn

wireless power transfer

wireless power transfer

A011120106

A011120106

Semiconductor nanodevices

Semiconductor nanodevices

Microelectromechanical Assignment Help

Microelectromechanical Assignment Help

Solution a ph o 1

Solution a ph o 1

IB Internal Assessment Example

IB Internal Assessment Example

Design of rotating electrical machines

Design of rotating electrical machines

Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...

This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.

一比一原版(爱大毕业证书)爱荷华大学毕业证如何办理

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如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
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◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
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校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。

Design and optimization of ion propulsion drone

Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.

smart pill dispenser is designed to improve medication adherence and safety f...

Smart Pill Dispenser that boosts medication adherence, empowers patients, enables remote monitoring, enhances safety, reduces healthcare costs, and contributes to data-driven healthcare improvements

Object Oriented Analysis and Design - OOAD

This ppt gives detailed description of Object Oriented Analysis and design.

CEC 352 - SATELLITE COMMUNICATION UNIT 1

SATELLITE COMMUNICATION

VARIABLE FREQUENCY DRIVE. VFDs are widely used in industrial applications for...

Variable frequency drive .A Variable Frequency Drive (VFD) is an electronic device used to control the speed and torque of an electric motor by varying the frequency and voltage of its power supply. VFDs are widely used in industrial applications for motor control, providing significant energy savings and precise motor operation.

An Introduction to the Compiler Designss

compiler material

Data Driven Maintenance | UReason Webinar

Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.

4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf

Conceptos basicos de fisica

Bayesian Decision Theory details ML.pptx

These slides describe the bayesian decision theory

LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant

Slides for the 4th Presentation on LLM Fine-Tuning with QLoRA Presented by Anant, featuring DataStax Astra

Digital Twins Computer Networking Paper Presentation.pptx

A Digital Twin in computer networking is a virtual representation of a physical network, used to simulate, analyze, and optimize network performance and reliability. It leverages real-time data to enhance network management, predict issues, and improve decision-making processes.

IEEE Aerospace and Electronic Systems Society as a Graduate Student Member

IEEE Aerospace and Electronic Systems Society as a Graduate Student Member

Operational amplifiers and oscillators notes

Basic electronics

一比一原版(USF毕业证)旧金山大学毕业证如何办理

原件一模一样【微信：95270640】【旧金山大学毕业证USF学位证成绩单】【微信：95270640】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
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留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：95270640】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理旧金山大学毕业证USF学位证毕业证学位证【微信：95270640 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。

Software Engineering and Project Management - Introduction, Modeling Concepts...

Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.

Mechanical Engineering on AAI Summer Training Report-003.pdf

Mechanical Engineering PROJECT REPORT ON SUMMER VOCATIONAL TRAINING
AT MBB AIRPORT

SCALING OF MOS CIRCUITS m .pptx

this ppt explains about scaling parameters of the mosfet it is basically vlsi subject

Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...

Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...

一比一原版(爱大毕业证书)爱荷华大学毕业证如何办理

一比一原版(爱大毕业证书)爱荷华大学毕业证如何办理

Design and optimization of ion propulsion drone

Design and optimization of ion propulsion drone

smart pill dispenser is designed to improve medication adherence and safety f...

smart pill dispenser is designed to improve medication adherence and safety f...

Object Oriented Analysis and Design - OOAD

Object Oriented Analysis and Design - OOAD

UNIT 4 LINEAR INTEGRATED CIRCUITS-DIGITAL ICS

UNIT 4 LINEAR INTEGRATED CIRCUITS-DIGITAL ICS

CEC 352 - SATELLITE COMMUNICATION UNIT 1

CEC 352 - SATELLITE COMMUNICATION UNIT 1

VARIABLE FREQUENCY DRIVE. VFDs are widely used in industrial applications for...

VARIABLE FREQUENCY DRIVE. VFDs are widely used in industrial applications for...

An Introduction to the Compiler Designss

An Introduction to the Compiler Designss

Data Driven Maintenance | UReason Webinar

Data Driven Maintenance | UReason Webinar

4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf

4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf

Bayesian Decision Theory details ML.pptx

Bayesian Decision Theory details ML.pptx

LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant

LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant

Digital Twins Computer Networking Paper Presentation.pptx

Digital Twins Computer Networking Paper Presentation.pptx

IEEE Aerospace and Electronic Systems Society as a Graduate Student Member

IEEE Aerospace and Electronic Systems Society as a Graduate Student Member

Operational amplifiers and oscillators notes

Operational amplifiers and oscillators notes

一比一原版(USF毕业证)旧金山大学毕业证如何办理

一比一原版(USF毕业证)旧金山大学毕业证如何办理

Software Engineering and Project Management - Introduction, Modeling Concepts...

Software Engineering and Project Management - Introduction, Modeling Concepts...

Mechanical Engineering on AAI Summer Training Report-003.pdf

Mechanical Engineering on AAI Summer Training Report-003.pdf

SCALING OF MOS CIRCUITS m .pptx

SCALING OF MOS CIRCUITS m .pptx

- 1. Electrostatic field in a coaxial line Msc. Julio Cesar Salazar Hernandez
- 2. A coaxial cable is a transmission line composed of two conductors, one internal and one external (see fig. 1.1). The external conductor is a metal tube or mesh shield, but the internal conductor is supported by a dielectric that can be a solid, expanded plastic or semi-solid (polyethylene discs, helical tapes, plastic strips, etc.). This transmission line is characterized by being a shielded structure, that is, the electromagnetic field is limited between the space of the inner and outer conductors. Illustration 1.1.- Structure of a Coaxial Cable.
- 3. A coaxial has an external diameter b and an internal diameter a. The space between the conductors is formed by a dielectric with a certain permittivity. A potential difference is applied between the conductors where the external one has 0V and the internal one V0 (see Fig. 1.2). Illustration 1.2.- Internal and external radius of the coaxial cable separated by a dielectric with a certain permittivity.
- 4. Analytical calculation. Calculation of the electric field. The electric field equation for electrostatic fields uses the Poisson equation (1) and the Laplace equation (2) as a function of fields. 𝛻2𝐸 = 𝛻 𝜌 𝜀 𝛻2 𝐸 = 0 (1) (2) Now based on potentials we have: 𝛻2 𝑉 = − 𝜌 𝜀 𝛻2 𝑉 = 0 (1.1) (2.1)
- 5. In the region of a<r<b the dielectric is found, so there is no free charge (ρ=0). Applying the Laplace equation of potentials in equation 2.1 with initial conditions: 𝑉 𝜌 = 𝑎 = 𝑉0 𝑉 𝜌 = 𝑏 = 0 This problem is solved directly because the structure is cylindrical and symmetrical. Rotating the coaxial about the z axis does not change the geometry at all. As a result we know that the electric potential field is a function of ρ. Solving equations in cylindrical coordinates we have the following equation: 𝛻2 𝑓 𝑟, ∅, 𝑧 = 1 𝑟 𝜕 𝜕𝑟 𝑟 𝜕𝑓 𝜕𝑟 + 1 𝑟2 𝜕2 𝑓 𝜕∅2 + 𝜕2 𝑓 𝜕𝑧2
- 6. In this case in the z and ∅ direction there are no changes, that is, they are always constant. Therefore, what interests us is knowing the electric field at each point from radius a to radius b. Changing the equation with the previously used variables we have: 𝛻2 𝑉(𝜌) = 0 1 𝜌 𝜕 𝜕𝜌 𝜌 ) 𝜕𝑉(𝜌 𝜕𝜌 = 0 𝜕 𝜕𝜌 𝜌 ) 𝜕𝑉(𝜌 𝜕𝜌 = 0 (2.2) By integrating the two sides of the previous equation. 𝜕 𝜕𝜌 𝜌 ) 𝜕𝑉(𝜌 𝜕𝜌 𝑑𝜌 = 0𝑑𝑝 𝜌 ) 𝜕𝑉(𝜌 𝜕𝜌 = 𝐶1 ) 𝜕𝑉(𝜌 𝜕𝜌 = 𝐶1 𝜌
- 7. Integrating again we have the following: ) 𝜕𝑉(𝜌 𝜕𝜌 𝑑𝜌 = 𝐶1 𝜌 𝑑𝑝 𝑽 𝝆 = 𝑪1𝒍𝒏 𝝆 + 𝑪2 This equation satisfies equation 2.2 𝜕 𝜕𝜌 𝜌 ) 𝜕𝑉(𝜌 𝜕𝜌 = 0 𝜕 𝜕𝜌 𝜌 𝜕 𝜕𝜌 (𝐶1𝑙𝑛 𝜌 + 𝐶2 = 0 𝜕 𝜕𝜌 𝜌(𝐶1 1 𝜌 = 0 0 = 0
- 8. Now the initial conditions are evaluated to know the values of the two constants: 𝑉 𝜌 = 𝑎 = 𝐶1 ln 𝑎 + 𝐶2 = 𝑉0 𝑉 𝜌 = 𝑏 = 𝐶1 ln 𝑏 + 𝐶2 = 0 (A) (B) Solving the system of equations of two unknowns, solve for B: ) 𝐶2 = −𝐶1l n( 𝑏 Substituting in A 𝐶1 ln ) 𝑎 − 𝐶1l n( 𝑏 = 𝑉0 𝐶1 ln ) 𝑏 − 𝐶1l n( 𝑎 = −𝑉0 𝑪1 = −𝑽0 𝒍𝒏 𝒃 𝒂
- 9. Replacing C1 in C2: 𝑪2 = ) 𝑽0𝐥 𝐧( 𝒃 𝒍𝒏 𝒃 𝒂 Therefore, the final solution is: 𝑽 𝝆 = −𝑽0𝒍𝒏 𝝆 𝒍𝒏 𝒃 𝒂 + 𝑽0 𝐥𝐧 𝒃 𝒍𝒏 𝒃 𝒂 ; 𝒂 < 𝝆 < 𝒃 Now that we have the electric potential we can find the electric field as follows: 𝐸 = −𝛻𝑉 𝐸 𝜌 = − 𝜕 𝜕𝜌 −𝑉0𝑙𝑛 𝜌 𝑙𝑛 𝑏 𝑎 + 𝑉0 ln 𝑏 𝑙𝑛 𝑏 𝑎 𝑬 𝝆 = 𝑽0 𝒍𝒏 𝒃 𝒂 1 𝝆 𝒂𝝆; 𝒂 < 𝝆 < 𝒃
- 10. You can also know the electric flux density: 𝐷 = 𝜀𝐸 ) 𝐷 𝜌 = 𝜀𝐸(𝜌 𝑫 𝝆 = 𝜺𝑽0 𝒍𝒏 𝒃 𝒂 1 𝝆 𝒂𝝆; 𝒂 < 𝝆 < 𝒃 Once the electrostatic case was resolved, the equations were evaluated with values between the internal and external radius. The proposed coaxial cable data is as follows: 𝑟𝑖 = 0.022 𝑚 𝑟𝑒 = 0.045 𝑚 𝜀𝑟 = 2.3 𝑉0 = 50𝑘[𝑉
- 11. Tables 1, 2 and 3 show the values obtained for the electric field density, the electric potential and the electric field respectively. 𝝆 𝑫 𝝆 0.022 6.46x10-5 0.025 5.68x10-5 0.030 4.74x10-5 0.032 4.44x10-5 0.035 4.06x10-5 0.040 3.55x10-5 0.042 3.38x10-5 0.045 3.16x10-5 𝝆 𝑽 𝝆 0.022 50000.00 0.025 41068.34 0.030 28329.63 0.032 23820.36 0.035 17559.20 0.040 8229.43 0.042 4820.49 0.045 0 Table 1.- Electric field density in the coaxial cable. Table 2.-Electrical Potential in the coaxial cable.
- 12. Table 3.-Electrical Field in the coaxial cable. 𝝆 𝑬 𝝆 0.022 3175885.466 0.025 2794779.21 0.030 2328982.675 0.032 2183421.258 0.035 1996270.864 0.040 1746737.006 0.042 1663559.054 0.045 1552655.117
- 13. Simulation using COMSOL Multiphysics. By solving the problem as an electrostatic case and giving the dimensions and physical characteristics of the problem, the following graphs of electric field and electric potential were obtained. Figure 1.3 shows the graph of the electric field norm that goes from a little more than 30M[V/m] to a little more than 1M[V/m]. But on the other hand, Figure 1.4 shows the electric potential that goes from 50k [V] to 0 [V]. Illustration 1.3.- Graph of the electric field in the coaxial cable.
- 14. Illustration 1.4.- Graph of the electrical potential in the coaxial cable.
- 15. Analytical vs simulated calculation. In order to compare the results obtained, the analytical equations were graphed in Excel. The electric potential graphs (fig. 1.4 and 1.5) and the electric field graph (fig. 1.3 and 1.6) are very similar since an extra fine mesh was used when simulating it. Illustration 1.5.- Analytical electrical potential graph in the coaxial cable.
- 16. 0 500000 1000000 1500000 2000000 2500000 3000000 3500000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Campo Eléctrico (V/m) Illustration 1.6.- Analytical electric field graph of the coaxial cable
- 17. Illustration 1.7.- Distribution of electrical potential in the coaxial cable.
- 18. Illustration 1.8.- Distribution of the electric field in the coaxial cable.
- 19. Conclusion. In solving this electrostatic problem, the advantage was that the problem could be reduced to a simple differential equation because only the radius of the coaxial cable varied. If the opposite were the case, perhaps the analytical solution would become more complex and difficult to solve since, although the differential equations that represent the physical behavior of the problem are obtained, it does not guarantee that an analytical solution exists, which is why simulation software is chosen. which uses numerical methods to give an approximate solution. In the case of COMSOL Multiphysic, it uses a mesh to solve the problem. If it uses a very fine mesh, the results are very close to the analytical one, but it takes more computing time. If a poor mesh is used, the results are far from the analytical one and uses less computing time. The distribution of the electric potential and the electric field is very similar since most of it is found on the surface of the central conductor and its intensity decreases until it disappears the closer it gets to the external conductor.