Resonance in parallel rlc circuit
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This document discusses parallel resonance in an electrical circuit. It defines parallel resonance as occurring when circuit elements are connected in parallel with their inductance and capacitance, causing impedance to rise to a maximum at the resonant frequency. The resonant frequency is where the inductive and capacitive reactances are equal. At resonance, the parallel circuit acts resistive and the impedance is at its peak while the current is at its minimum. Key characteristics of a parallel resonant circuit including impedance, current, susceptance, and bandwidth are explained.
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3) In an RLC circuit, the charge on the capacitor undergoes damped harmonic oscillations expressed as e^(-Rt/2L)cos(ωdt), where ωd is the angular frequency of oscillations.
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resonanceinelectricalcircuitsseriesresonance-220309094034 (1).pdf
This document discusses electrical resonance in series RLC circuits. It explains that series resonance occurs when the inductive and capacitive reactances cancel each other out, resulting in a minimum impedance at the resonant frequency. The bandwidth of a series resonant circuit is defined as the frequency range over which the current is at least half of its maximum value. The quality factor Q is a measure of how sharp the resonance peak is, and is equal to the ratio of the resonant frequency to the bandwidth.
Chameli Devi Group of Institution(BEE) (2).pptx
The document discusses series resistor-inductor-capacitor (RLC) circuits, describing how an RLC circuit consists of a resistor, inductor, and capacitor connected in series across an alternating voltage supply. It explains that in an RLC circuit, the voltage drops across each component are out of phase with each other and with the current. The document also covers concepts such as impedance, phasor diagrams, resonance, frequency response, time domain response, and applications of series RLC circuits.
Lecture 4circuit.pptx
The document discusses series and parallel resonance circuits. Some key points:
- In a series RLC circuit, the impedance is purely resistive at resonance when the inductive and capacitive reactances are equal. Maximum current flows at this resonant frequency.
- Parallel RLC circuits also exhibit resonance when the reactances cancel out. Minimum current flows at resonance for a parallel circuit.
- For both circuits, the quality factor Q and bandwidth depend on the resistance, with lower resistance leading to higher Q and narrower bandwidth.
CT UNIT-III.pptx
This unit covers series and parallel resonance, quality factor, bandwidth, self and mutual inductance, and coefficient of coupling. It discusses resonance occurring when the applied voltage and source current are in phase, making the circuit purely resistive. At resonance, the power factor is unity. Series resonance occurs when the inductive and capacitive reactances are equal in magnitude but cancel each other out. This happens at the resonant frequency. Applications of series resonance circuits include AC mains filters and radio/TV tuning circuits. The bandwidth, selectivity, and quality factor of series resonance circuits are also defined in relation to the resonant frequency, current, and cutoff frequencies.
12
1. The document discusses series and parallel resonant circuits, explaining that in a series resonant circuit the inductive and capacitive reactances cancel out at resonance, resulting in minimum impedance equal to resistance. In a parallel resonant circuit, the currents through the inductor and capacitor are equal and opposite at resonance, resulting in minimum current drawn from the power supply.
2. Experiments are described to obtain the characteristics of series and parallel resonant circuits by varying frequency, inductance, or capacitance and measuring current. Current reaches a maximum in series resonance and minimum in parallel resonance.
3. Circuit diagrams and tables are provided to record experimental results for series and parallel resonant circuits when varying frequency, inductance, or capacitance.
ac circuit
- AC circuits use alternating current that constantly changes in amplitude and direction. This allows the magnitude to be easily changed using transformers.
- The sine wave is the most common AC waveform, defined by amplitude, frequency, phase, and time. Peak, RMS, and average amplitudes are important measurements.
- Impedance combines resistance with reactance from inductors and capacitors. Reactance depends on frequency and causes current to lead or lag voltage in circuits.
series and Parallel resonance subject .pptx
Resonance occurs in any circuit containing at least one inductor and capacitor. In an RLC circuit, resonance is the condition where the capacitive and inductive reactances are equal, resulting in a purely resistive impedance. At resonance, the circuit exhibits a sharp peak in its frequency response curve. The resonant frequency is the frequency at which the imaginary part of the transfer function is zero. Circuits designed to operate at resonance have applications such as radio receivers where they allow for frequency selection.
lect3_resonance.pptx
Resonance is an important phenomenon in electrical applications such as telecommunications. A resonant circuit occurs when the voltage and current are in phase, resulting in zero net reactance and behaving like a pure resistor. There are two types of resonance: series and parallel. In series resonance, the potential differences across the inductor and capacitor cancel out, resulting in maximum voltage magnification. The bandwidth of a resonant circuit is defined as the range of frequencies where the power delivered is greater than or equal to half the power at resonance.
AC FUNDAMENTALS.pptx
- Alternating current changes direction periodically in a sine wave pattern. The frequency is measured in Hertz (Hz), typically 50 or 60 Hz.
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- Important AC terms include root mean square (RMS) value, phase angle, impedance, and resonance. Resonance occurs when the capacitive and inductive reactances cancel out, resulting in maximum current. Circuits can resonate in series or parallel configurations.
Alternating Current
Alternating current signal
AC means Alternating Current and DC means Direct Current. AC and DC are also used when referring to voltages and electrical signals which are not currents! For example: a 12V AC power supply has an alternating voltage (which will make an alternating current flow).
Resonance.pptx
Resonance in an RLC circuit occurs when the capacitive and inductive reactances cancel each other out. This happens at a specific frequency called the resonance frequency. In a series RLC circuit, resonance occurs when the inductive and capacitive reactances are equal, resulting in maximum current and minimum impedance. In a parallel RLC circuit, resonance occurs when the impedance is at its maximum. Resonant circuits have applications in devices like Tesla coils and radio tuners due to their ability to selectively respond to specific frequencies.
Ac circuits
Okay, let's think through this step-by-step:
* When just the resistor is connected, power is 1.000 W
* When the capacitor is added, power is 0.500 W
* When the inductor is added (without the capacitor), power is 0.250 W
* Power delivered is proportional to the square of the current. As impedance increases, current decreases.
* With just the resistor, impedance is lowest so current is highest and power is 1.000 W
* Adding the capacitor increases impedance, so current decreases and power is 0.500 W
* Adding the inductor further increases impedance, so current decreases more and power is 0.250 W
Resonance.pptx
The document discusses resonance in AC circuits. It defines resonance as occurring in an RLC circuit when the capacitive and inductive reactances are equal, resulting in a purely resistive impedance. Key points include:
- Resonance occurs at the resonant frequency where the impedance is purely real. Maximum current flows through the circuit at this point.
- The quality factor Q measures the sharpness of resonance and is defined as the ratio of peak stored energy to energy lost per cycle.
- The bandwidth is the frequency range where power is at least half the maximum power at resonance. Half-power points occur when the current magnitude is 1/√2 times the maximum.
- In a series R
Electrical Circuits
1. The document discusses direct current (DC) and alternating current (AC). DC flows in one direction while AC periodically reverses direction.
2. Simple AC circuits containing a resistor, capacitor, or inductor are examined. A resistor allows both DC and AC. A capacitor blocks DC but allows AC, while an inductor opposes rapid changes in current.
3. Impedance, phase factor, and resonance effects are also covered. Impedance represents the total opposition to current flow. Resonance occurs at the frequency where capacitive and inductive reactances cancel out, producing a maximum current.
Ac circuits 15 april 2013(1)
Here are the key steps to solve this problem:
1) Draw the circuit diagram showing R, L, C in series with the AC voltage source.
2) Write the impedance equation:
Z = √(R2 + (XL - XC)2)
3) Calculate the individual reactances:
XL = 2πfL
XC = 1/(2πfC)
4) Calculate the net reactance:
Xnet = XL - XC
5) Calculate the impedance Z by plugging values into the impedance equation.
6) Use Ohm's law to calculate the current:
Irms = Vrms/Z
Ac circuits 15 april 2013(1)
Okay, let's think through this step-by-step:
* When just the resistor is connected, power is 1.000 W
* When the capacitor is added, power is 0.500 W
* When the inductor is added (without the capacitor), power is 0.250 W
* Power delivered depends on the impedance of the circuit. Adding more reactive elements (capacitor, inductor) increases the total impedance.
* When both the capacitor and inductor are added, they will combine to further increase the total impedance compared to having just one of them.
* Using the power formula P = V2/Z, as Z (impedance) increases, power delivered decreases.
Ac circuits 15 april 2013(1)
Okay, let's think through this step-by-step:
* When just the resistor is connected, power is 1.000 W
* When the capacitor is added, power is 0.500 W
* When the inductor is added (without the capacitor), power is 0.250 W
* Power delivered depends on the impedance of the circuit. Adding more reactive elements increases the total impedance.
* With just the resistor, impedance is minimum, so power is maximum.
* With resistor + capacitor, impedance increases, so power decreases to 0.500 W.
* With resistor + inductor, impedance increases further, so power decreases more to 0.250 W
Ac circuits 15 april 2013(1)
Okay, let's think through this step-by-step:
* When just the resistor is connected, power is 1.000 W
* When the capacitor is added, power is 0.500 W
* When the inductor is added (without the capacitor), power is 0.250 W
* Power delivered depends on the impedance of the circuit. Adding more reactive elements (capacitor, inductor) increases the total impedance.
* When both the capacitor and inductor are added, they will combine to further increase the total impedance compared to having just one of them.
* Based on the trend so far, we can infer that adding both reactive elements will deliver even less power than having just one.
Series parallel resonance circuit
This is the experiment for undergraduate science and engineering students in the subjects of Physics, Applied Physics, Basic electronics etc. The experiment is explained in detail so that the students and faculty member can get the better knowledge of the experiment.
Introduction to Oscillators
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#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
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- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
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- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
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- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
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Resonance in parallel rlc circuit
- 1. Seminar On Basic Electrical Engineering(TEE-201) Topic: Parallel Resonance Made By: Shivam Gupta Roll No.-33 Sec.-E
- 2. Contents Parallel Resonance • Parallel Resonance Introductio n • Introduction Parallel RLC Circuit • Parallel RLC Circuit Resonant Frequency • Resonant Frequency Parallel Resonant Circuit • Parallel Resonant Circuit Frequency Curve • Frequency Curve Impedence Of a Parallel Resonant Circuit • Impedence Of a Parallel Resonant Circuit Current In Parallel Resonant Circuit • Current In Parallel Resonant Circuit Susceptanc e Of a Parallel Resonant Circuit • Susceptance Of a Parallel Resonant Circuit Bandwidth Of a Parallel Resonant Circuit • Bandwidth Of a Parallel Resonant Circuit Review • Review
- 3. PARALLEL RESONANCE The resonance that results when circuit elements are connected with their inductance and capacitance in parallel, so that the impedance of the combination rises to a maximum at the resonant frequency.
- 4. INTRODUCTION • The resonant electrical circuit must have both inductance and capacitance. • In addition, resistance will always be present due either to the lack of ideal elements or to the control offered on the shape of the resonance curve. • When resonance occurs due to the application of the proper frequency ( fr), the energy absorbed by one reactive element is the same as that released by another reactive element within the system.
- 5. Resonant Frequency The frequency at which the inductive and capacitive reactances of a parallel resonant circuit are equal. The frequency at which the parallel impedance of a parallel resonant circuit is maximum. The frequency at which the parallel impedance of a parallel resonant circuit has a power factor of unity.
- 6. Calculation Of Resonant Frequency Simple parallel resonant circuit (tank circuit). Since we know the equations for determining the reactance of each element at a given frequency, and we're looking for that point where the two reactances are equal to each other, we can set the two reactance formulae equal to each other and solve for frequency algebraically.
- 7. XL=2πfL XC=1/2πfC Resonance occurs when XL = XC
- 8. This is a formula to tell us the resonant frequency of a tank circuit, given the values of inductance (L) in Henrys and capacitance (C) in Farads.
- 9. Phasor diag. for parallel resonant circuit.
- 10. Parallel resonant circuits • A parallel resonant circuit is resistive at the resonant frequency.At resonance XL=XC, the reactive components cancel. The impedance is maximum at resonance. • Below the resonant frequency, the parallel resonant circuit looks inductive since the impedance of the inductor is lower, drawing the larger proportion of current. • Above resonance, the capacitive rectance decreases, drawing the larger current, thus, taking on a capacitive characteristic.
- 11. Capacitive Frequency Curve For Parallel Resonance Resistive Inductive
- 12. Impedence Of A Parallel Resonant Circuit Impedance is maximum at resonance in a parallel resonant circuit, but decreases above or below resonance. Voltage is at a peak at resonance since voltage is proportional to impedance (E=IZ). Impedance peaks at resonance
- 13. Current In A Parallel Resonance Circuit At resonance the current flowing through the circuit is at its minimum as the inductive and capacitive branch currents are equal ( IL = IC ) and are 180o out of phase.
- 14. We remember that the total current flowing in a parallel RLC circuit is equal to the vector sum of the individual branch currents and for a given frequency is calculated as:
- 15. At resonance, currents IL and IL are equal and cancelling giving a net reactive current equal to zero. Then at resonance the above equation becomes.
- 16. Susceptance At Resonance The inductive susceptance, BL is inversely proportional to the frequency as represented by the hyperbolic curve. The capacitive susceptance, BC is directly proportional to the frequency and is therefore represented by a straight line. The final curve shows the plot of total susceptance of the parallel resonance circuit versus the frequency and is the difference between the two susceptances.
- 17. At the resonant frequency point were it crosses the horizontal axis the total circuit susceptance is zero.
- 18. Bandwidth Of A Parallel Resonant Circuit BW = Δf = fh-fl = 343-281 = 62 fl = fc - Δf/2 = 312-31 = 281 fh = fc + Δf/2 = 312+31 = 343 Q = fc/BW = (312 Hz)/(62 Hz)=5 The bandwidth of the parallel resonant response curve is measured between the half power points. This corresponds to the 70.7% voltage points since power is proportional to E2. ((0.707)2=0.50) Since voltage is proportional to impedance, we may use the impedance curve.
- 19. Review: • At resonance parallel RLC circuit acts like an open circuit. • Current at resonance is at it’s minimum. • Impedence of the parallel resonant circuit is maximum and is equal to the resistance.This resistance is known as dynamic resistance. • Susceptance At resonant frequency is equal to ZERO