Household Electricity
•Download as PPT, PDF•
7 likes•7,963 views
This document discusses household electricity in Singapore. It explains that power stations generate electricity from oil and natural gas, which is transmitted to homes and industries. It defines electrical power and its units, and distinguishes the power of appliances from the larger power generated by power stations. The document also covers electricity safety features, dangers of electricity, and ways to save electricity.
Report
Share
Report
Share
![Objectives ,[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommended
Electric current and its effect CLASS-8
Electric current
HEATING EFFECT OF CURRENT
MAGNETIC EFFECT OF CURRENT
ELECTROMAGNET
ELECTRIC BELL
ADVANTAGE OF HEATING EFFECT
DISADVANTAGE OF HEATING EFFECT
SYMBOLS OF ELECTRIC COMPONENTS
MINIATURE CIRCUIT BREAKER (MCB)
ELECTRIC FUSE
Current Electricity
The document provides information about current, electromotive force, potential difference, and resistance. It defines key terms, provides equations, and examples of calculations. It describes:
- Current is the flow of charge measured in amperes. It is carried by the flow of electrons in a conductor.
- Electromotive force is the work done per unit charge to drive charge around a complete circuit. It is measured in volts.
- Potential difference is the work done per unit charge to move charge through a circuit component. It is also measured in volts.
- Resistance is the opposition to current flow. It is calculated as potential difference divided by current and measured in ohms.
Electrical Energy
The document discusses key concepts about electrical energy including:
- Atoms are made up of a nucleus surrounded by electrons that carry a negative charge. Protons in the nucleus carry a positive charge while neutrons carry no charge.
- Static electricity occurs when surfaces rub against each other, transferring electrons between them and building up positive or negative charges.
- Electric current involves the flow of electrons along a wire or conductor, which can be measured in amps. Voltage measures the energy supplied by these charges and is measured in volts.
Electricity ppt
There are two types of charges: positive charges consist of protons, and negative charges consist of electrons. The standard unit of charge is the coulomb. Conductors contain free or loosely bound electrons that allow them to conduct electricity, while insulators do not have free electrons and obstruct electricity flow. Ohm's law defines the relationship between voltage, current, and resistance in a circuit. Joule's law states that the heat produced is directly proportional to the square of the current, the resistance, and the time of current flow. Electric power is defined as voltage multiplied by current and measured in watts.
Electricity at Home
This document discusses electricity in the home, including:
- How to construct simple circuits with switches controlling electrical devices and drawing circuit diagrams.
- How domestic electricity usage is measured in kilowatt-hours (kWh) and how electrical bills are calculated based on the meter reading and cost per kWh.
- Electrical safety features like three-pin plugs with fuses that break circuits if too much current overheats the fuse wire, and selecting the correct fuse rating based on an appliance's power and voltage.
- The difference between alternating current (AC) and direct current (DC) electricity supplied to homes.
laws of motion class-XI
1. The document describes Newton's three laws of motion and other concepts related to forces and motion, including balanced and unbalanced forces, inertia, momentum, and conservation of momentum.
2. Newton's three laws are: (1) an object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force, (2) the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, and (3) for every action, there is an equal and opposite reaction.
3. The law of conservation of momentum states that the total momentum of an isolated system remains constant, meaning the momentum of objects before an interaction is equal to
Ohm's Law
1. Ohm's law defines the linear relationship between voltage and current in a circuit, where the resistor's resistance and voltage drop determine the current flow through the resistor.
2. The resistor's current is equal to the voltage divided by the resistance according to the equation I=V/R, where I is current, V is voltage, and R is resistance.
3. Ohm's law can also be used to calculate voltage or resistance when two variables are known, as shown in the equations V=IR and R=V/I.
Chemical effects of electric current
Some important short note regarding chemical effects of electric current.
Recommended
Electric current and its effect CLASS-8
Electric current
HEATING EFFECT OF CURRENT
MAGNETIC EFFECT OF CURRENT
ELECTROMAGNET
ELECTRIC BELL
ADVANTAGE OF HEATING EFFECT
DISADVANTAGE OF HEATING EFFECT
SYMBOLS OF ELECTRIC COMPONENTS
MINIATURE CIRCUIT BREAKER (MCB)
ELECTRIC FUSE
Current Electricity
The document provides information about current, electromotive force, potential difference, and resistance. It defines key terms, provides equations, and examples of calculations. It describes:
- Current is the flow of charge measured in amperes. It is carried by the flow of electrons in a conductor.
- Electromotive force is the work done per unit charge to drive charge around a complete circuit. It is measured in volts.
- Potential difference is the work done per unit charge to move charge through a circuit component. It is also measured in volts.
- Resistance is the opposition to current flow. It is calculated as potential difference divided by current and measured in ohms.
Electrical Energy
The document discusses key concepts about electrical energy including:
- Atoms are made up of a nucleus surrounded by electrons that carry a negative charge. Protons in the nucleus carry a positive charge while neutrons carry no charge.
- Static electricity occurs when surfaces rub against each other, transferring electrons between them and building up positive or negative charges.
- Electric current involves the flow of electrons along a wire or conductor, which can be measured in amps. Voltage measures the energy supplied by these charges and is measured in volts.
Electricity ppt
There are two types of charges: positive charges consist of protons, and negative charges consist of electrons. The standard unit of charge is the coulomb. Conductors contain free or loosely bound electrons that allow them to conduct electricity, while insulators do not have free electrons and obstruct electricity flow. Ohm's law defines the relationship between voltage, current, and resistance in a circuit. Joule's law states that the heat produced is directly proportional to the square of the current, the resistance, and the time of current flow. Electric power is defined as voltage multiplied by current and measured in watts.
Electricity at Home
This document discusses electricity in the home, including:
- How to construct simple circuits with switches controlling electrical devices and drawing circuit diagrams.
- How domestic electricity usage is measured in kilowatt-hours (kWh) and how electrical bills are calculated based on the meter reading and cost per kWh.
- Electrical safety features like three-pin plugs with fuses that break circuits if too much current overheats the fuse wire, and selecting the correct fuse rating based on an appliance's power and voltage.
- The difference between alternating current (AC) and direct current (DC) electricity supplied to homes.
laws of motion class-XI
1. The document describes Newton's three laws of motion and other concepts related to forces and motion, including balanced and unbalanced forces, inertia, momentum, and conservation of momentum.
2. Newton's three laws are: (1) an object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force, (2) the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, and (3) for every action, there is an equal and opposite reaction.
3. The law of conservation of momentum states that the total momentum of an isolated system remains constant, meaning the momentum of objects before an interaction is equal to
Ohm's Law
1. Ohm's law defines the linear relationship between voltage and current in a circuit, where the resistor's resistance and voltage drop determine the current flow through the resistor.
2. The resistor's current is equal to the voltage divided by the resistance according to the equation I=V/R, where I is current, V is voltage, and R is resistance.
3. Ohm's law can also be used to calculate voltage or resistance when two variables are known, as shown in the equations V=IR and R=V/I.
Chemical effects of electric current
Some important short note regarding chemical effects of electric current.
Electric Current
The document discusses electric current and related concepts. It defines current as the flow of electric charge from one place to another, measured in amperes. Current can be direct or alternating. Resistance is a property that weakens current flow and is measured in ohms. Ohm's law states current is directly proportional to voltage and inversely proportional to resistance. Kirchhoff's laws govern the analysis of electric circuits.
Current And Voltages
This document provides an introduction to DC circuits, current, voltage, and power. It defines key concepts such as:
- Current is the flow of electrons and is measured in amps.
- Voltage is a force that moves electrons and is measured in volts.
- Power is the rate of energy use and is calculated using voltage, current, and measured in watts.
It also examines the relationships between these concepts and how connecting batteries in series and parallel affects voltage and current in a circuit. Examples of calculations involving amps, volts, watts, and Ohm's Law are provided.
Electric circuits
The document discusses electrical circuits and Ohm's Law. It defines key concepts like voltage, current, resistance and their relationships. Voltage is measured in volts and is the "push" that drives current through a circuit. Current is measured in amps and is the flow of electrons. Resistance opposes the flow of current. Ohm's Law states that current is directly proportional to voltage and inversely proportional to resistance. Circuits can be connected in series or parallel, affecting how current and voltage are distributed.
Ohms law
Ohm's Law describes the relationship between voltage, current, and resistance in an electrical circuit. Voltage is the "push" of electricity and is measured in volts. Current is the flow of electricity and is measured in amps. Resistance opposes the flow of current and is measured in ohms. Ohm's Law states that current is directly proportional to voltage and inversely proportional to resistance. Using Ohm's Law, the voltage, current, or resistance in a circuit can be calculated if two of the three values are known. Resistors are used to decrease voltage in a circuit and are marked with color bands to indicate their resistance value. Circuits can be connected in series or parallel, and understanding circuit diagrams
Electricity and circuits
This document provides an overview of electricity and electrical circuits. It defines electricity as the flow of electric current and notes that electricity is caused by an imbalance of positive and negative charges. It then explains that an electrical circuit provides a complete path for electricity to flow through devices. Common examples of circuits include household wiring and car batteries. The document discusses the differences between open and closed circuits and how switches are used to open and close circuits to control the flow of electricity.
CURRENT ELECTRICITY
- Electric current is the flow of electric charge. It is studied in current electricity and owes its origin to Alessandro Volta's invention of the battery, which produced a steady flow of electric current.
- In conductors like metals, loosely bound electrons can move freely and produce electric current when a potential difference is applied across the conductor by a battery. These free electrons drift in the direction of the electric field.
- Current is defined as the rate of flow of electric charge. It is measured in amperes, which is the amount of charge (in coulombs) passing through an area in one second. Current is a scalar quantity while current density is a vector quantity.
Electricity
Atoms contain protons, neutrons, and electrons. Protons are positively charged, electrons are negatively charged, and are located on the outer edges of atoms. Static electricity is the build up of an electric charge on the surface of an object without flowing. It can be discharged through friction, conduction, or induction. Electricity flows through circuits, which provide a path for electrons. Direct current flows in one direction, while alternating current changes direction.
Electricity (ppt)
This document provides an overview of electricity and electric circuits. It defines key concepts such as current, voltage, resistance, and different circuit arrangements. Some main points:
- Electricity is a form of energy that flows through circuits due to electric charges and potential differences. Current is the flow of electric charges.
- Circuits must be closed loops for current to flow. Components include batteries, wires, switches, and devices. Their symbols are used in circuit diagrams.
- Circuits can be arranged in series or parallel. Series increases overall resistance while parallel decreases it.
- Resistance opposes current flow
Electricity presentation (Grade 10)
This document provides information about electric charge and the atom. It discusses how objects become charged by gaining or losing electrons and how like charges repel and opposite charges attract. It also describes electric fields as regions of space where electrical forces act and how charged particles like electrons create electric fields. Additional topics covered include lightning, lightning rods, current, resistance, circuits and power. Key points are made about charge being measured in coulombs and current in amps. Series and parallel circuits are explained in terms of how voltage and current are distributed.
Electrical Power and Energy
This document discusses electrical power, energy, hazards, and safety devices. It defines electrical power as the product of current and voltage, and electrical energy as power multiplied by time. Safety hazards include damaged insulation, overheating of cables, damp conditions, and overloading. Safety devices include circuit breakers that switch off power when current overflows, and fuses that melt with excessive current. Double insulation and earthing are also safety features.
Current Electricity.ppt
This document discusses electric current, charge, and potential difference. It defines current as the flow of charge carriers, like electrons, around a complete circuit when a potential difference is created by a power source. Current is measured in Amperes (A) and symbolized as I. Charge is measured in Coulombs (C) and symbolized as Q. The relationship between current, charge, and time is defined by the formula ΔQ = IΔt, which calculates the change in charge as the current multiplied by the change in time. Several examples are provided to demonstrate calculating charge using this formula. The document also discusses basic electric circuits and formulas for calculating resistance using Ohm's law.
Introducing Electricity
This document introduces electricity and electric circuits. It discusses:
1) The sources of electricity as main electricity from power stations and electric cells for portable devices.
2) The components of an electric circuit including connecting wires, bulbs, switches, and cells.
3) How circuits can be arranged in series or parallel and the differences between complete and incomplete circuits.
Ohms Law
The document discusses Ohm's law and basic circuit concepts. It defines key terms like current, voltage, resistance, and explains how these relate through Ohm's law. Circuits can be connected in series or parallel, and this affects how current and voltage are distributed. While ideal resistors follow Ohm's law linearly, real components like light bulbs become less linear as they heat up and their resistance changes. Experiments are described to illustrate these concepts using light bulbs and circuits.
FORCE | CONTACT AND NON-CONTACT FORCES
Forces can cause changes in an object's motion or form. A contact force requires direct contact between objects, like frictional or muscular forces, while a non-contact force acts over a distance without touching, such as gravitational, magnetic, or nuclear forces. Forces are interactions that can change the motion of an object when unopposed.
Series and Parallel Circuits
There are two types of electrical circuits: series circuits and parallel circuits. In a series circuit, the components are connected end to end in a single loop. The same current flows through each component. In a parallel circuit, the components are connected side by side, providing multiple paths for current to flow. If one component fails in a series circuit, the entire circuit is broken, while a failure in one component of a parallel circuit does not affect the others. Series circuits have higher total resistance and lower total current than parallel circuits. Home electrical systems generally use parallel circuits so that failure of one device does not disable the entire system.
Class 11 chapter 1 ppt
definition of physics, its relation with technology, society & other branches of science, conservation laws & fundamental forces in nature
Magnetic effect by aman sharif
Magnetic effects can be produced by electric currents. When a current flows through a conductor, it creates a magnetic field around the conductor. Three key relationships govern magnetic fields: (1) like magnetic poles repel and opposite poles attract, (2) the strength of a magnetic field depends on the amount of current and number of turns in a coil, and (3) changing magnetic fields can induce electric currents in nearby conductors based on Lenz's law. Electromagnets and transformers take advantage of these relationships to manipulate magnetic fields for applications like motors, generators, and power transmission.
current, voltage and resistance
The document discusses key concepts about electricity including:
- Electric current is the flow of charged particles in a circuit. It is measured in amperes.
- Voltage is the electric potential difference between two points in a circuit. It drives the electric current and is measured in volts.
- Resistance opposes the flow of current and is measured in ohms. It varies based on the material's properties.
- Ohm's law states the relationship between current, voltage, and resistance in a circuit. Increased resistance decreases current.
Electric current and its effect
Electric circuit is the path in which electric current flows from a source across various components.
Electric circuit diagram is the diagrammatic representation of an electric circuit.
Electricity
Electricity is a form of energy that is commonly used in everyday devices like heaters, phones, lamps, and fans. It is the flow of electrons through conductors like wires. An electrical circuit requires a power source, conductors to carry the current, and components that use the energy like light bulbs. Circuits can be connected in series or parallel. Voltage, current, and resistance follow Ohm's Law. Common circuit elements include batteries, wires, switches, and fuses. Electricity powers devices by producing effects like light, motion, and heat.
Pratical electricity
1) The document discusses the safe use of electricity in the home. It describes common electrical appliances like lighting, heating, and motors.
2) It outlines electrical hazards such as damaged insulation, overheating of cables, damp conditions, and carelessness that can cause electric shock.
3) The document provides guidance on safely using electricity through the use of fuses, circuit breakers, earthing of appliances, and double insulation to protect against electric shock.
Practical Electricity
Electricity can be used for heating, lighting, and powering motors. Heating elements get hot when electricity passes through, lighting works when the filament in a bulb is heated to glow, and motors use magnetic fields to convert electricity into rotational motion. Dangers of electricity include damaged insulation, overheating of cables from overloading or thin wires, and damp conditions allowing electricity to pass through water to a person's body. Proper and safe use of electricity in the home requires awareness of these hazards.
More Related Content
What's hot
Electric Current
The document discusses electric current and related concepts. It defines current as the flow of electric charge from one place to another, measured in amperes. Current can be direct or alternating. Resistance is a property that weakens current flow and is measured in ohms. Ohm's law states current is directly proportional to voltage and inversely proportional to resistance. Kirchhoff's laws govern the analysis of electric circuits.
Current And Voltages
This document provides an introduction to DC circuits, current, voltage, and power. It defines key concepts such as:
- Current is the flow of electrons and is measured in amps.
- Voltage is a force that moves electrons and is measured in volts.
- Power is the rate of energy use and is calculated using voltage, current, and measured in watts.
It also examines the relationships between these concepts and how connecting batteries in series and parallel affects voltage and current in a circuit. Examples of calculations involving amps, volts, watts, and Ohm's Law are provided.
Electric circuits
The document discusses electrical circuits and Ohm's Law. It defines key concepts like voltage, current, resistance and their relationships. Voltage is measured in volts and is the "push" that drives current through a circuit. Current is measured in amps and is the flow of electrons. Resistance opposes the flow of current. Ohm's Law states that current is directly proportional to voltage and inversely proportional to resistance. Circuits can be connected in series or parallel, affecting how current and voltage are distributed.
Ohms law
Ohm's Law describes the relationship between voltage, current, and resistance in an electrical circuit. Voltage is the "push" of electricity and is measured in volts. Current is the flow of electricity and is measured in amps. Resistance opposes the flow of current and is measured in ohms. Ohm's Law states that current is directly proportional to voltage and inversely proportional to resistance. Using Ohm's Law, the voltage, current, or resistance in a circuit can be calculated if two of the three values are known. Resistors are used to decrease voltage in a circuit and are marked with color bands to indicate their resistance value. Circuits can be connected in series or parallel, and understanding circuit diagrams
Electricity and circuits
This document provides an overview of electricity and electrical circuits. It defines electricity as the flow of electric current and notes that electricity is caused by an imbalance of positive and negative charges. It then explains that an electrical circuit provides a complete path for electricity to flow through devices. Common examples of circuits include household wiring and car batteries. The document discusses the differences between open and closed circuits and how switches are used to open and close circuits to control the flow of electricity.
CURRENT ELECTRICITY
- Electric current is the flow of electric charge. It is studied in current electricity and owes its origin to Alessandro Volta's invention of the battery, which produced a steady flow of electric current.
- In conductors like metals, loosely bound electrons can move freely and produce electric current when a potential difference is applied across the conductor by a battery. These free electrons drift in the direction of the electric field.
- Current is defined as the rate of flow of electric charge. It is measured in amperes, which is the amount of charge (in coulombs) passing through an area in one second. Current is a scalar quantity while current density is a vector quantity.
Electricity
Atoms contain protons, neutrons, and electrons. Protons are positively charged, electrons are negatively charged, and are located on the outer edges of atoms. Static electricity is the build up of an electric charge on the surface of an object without flowing. It can be discharged through friction, conduction, or induction. Electricity flows through circuits, which provide a path for electrons. Direct current flows in one direction, while alternating current changes direction.
Electricity (ppt)
This document provides an overview of electricity and electric circuits. It defines key concepts such as current, voltage, resistance, and different circuit arrangements. Some main points:
- Electricity is a form of energy that flows through circuits due to electric charges and potential differences. Current is the flow of electric charges.
- Circuits must be closed loops for current to flow. Components include batteries, wires, switches, and devices. Their symbols are used in circuit diagrams.
- Circuits can be arranged in series or parallel. Series increases overall resistance while parallel decreases it.
- Resistance opposes current flow
Electricity presentation (Grade 10)
This document provides information about electric charge and the atom. It discusses how objects become charged by gaining or losing electrons and how like charges repel and opposite charges attract. It also describes electric fields as regions of space where electrical forces act and how charged particles like electrons create electric fields. Additional topics covered include lightning, lightning rods, current, resistance, circuits and power. Key points are made about charge being measured in coulombs and current in amps. Series and parallel circuits are explained in terms of how voltage and current are distributed.
Electrical Power and Energy
This document discusses electrical power, energy, hazards, and safety devices. It defines electrical power as the product of current and voltage, and electrical energy as power multiplied by time. Safety hazards include damaged insulation, overheating of cables, damp conditions, and overloading. Safety devices include circuit breakers that switch off power when current overflows, and fuses that melt with excessive current. Double insulation and earthing are also safety features.
Current Electricity.ppt
This document discusses electric current, charge, and potential difference. It defines current as the flow of charge carriers, like electrons, around a complete circuit when a potential difference is created by a power source. Current is measured in Amperes (A) and symbolized as I. Charge is measured in Coulombs (C) and symbolized as Q. The relationship between current, charge, and time is defined by the formula ΔQ = IΔt, which calculates the change in charge as the current multiplied by the change in time. Several examples are provided to demonstrate calculating charge using this formula. The document also discusses basic electric circuits and formulas for calculating resistance using Ohm's law.
Introducing Electricity
This document introduces electricity and electric circuits. It discusses:
1) The sources of electricity as main electricity from power stations and electric cells for portable devices.
2) The components of an electric circuit including connecting wires, bulbs, switches, and cells.
3) How circuits can be arranged in series or parallel and the differences between complete and incomplete circuits.
Ohms Law
The document discusses Ohm's law and basic circuit concepts. It defines key terms like current, voltage, resistance, and explains how these relate through Ohm's law. Circuits can be connected in series or parallel, and this affects how current and voltage are distributed. While ideal resistors follow Ohm's law linearly, real components like light bulbs become less linear as they heat up and their resistance changes. Experiments are described to illustrate these concepts using light bulbs and circuits.
FORCE | CONTACT AND NON-CONTACT FORCES
Forces can cause changes in an object's motion or form. A contact force requires direct contact between objects, like frictional or muscular forces, while a non-contact force acts over a distance without touching, such as gravitational, magnetic, or nuclear forces. Forces are interactions that can change the motion of an object when unopposed.
Series and Parallel Circuits
There are two types of electrical circuits: series circuits and parallel circuits. In a series circuit, the components are connected end to end in a single loop. The same current flows through each component. In a parallel circuit, the components are connected side by side, providing multiple paths for current to flow. If one component fails in a series circuit, the entire circuit is broken, while a failure in one component of a parallel circuit does not affect the others. Series circuits have higher total resistance and lower total current than parallel circuits. Home electrical systems generally use parallel circuits so that failure of one device does not disable the entire system.
Class 11 chapter 1 ppt
definition of physics, its relation with technology, society & other branches of science, conservation laws & fundamental forces in nature
Magnetic effect by aman sharif
Magnetic effects can be produced by electric currents. When a current flows through a conductor, it creates a magnetic field around the conductor. Three key relationships govern magnetic fields: (1) like magnetic poles repel and opposite poles attract, (2) the strength of a magnetic field depends on the amount of current and number of turns in a coil, and (3) changing magnetic fields can induce electric currents in nearby conductors based on Lenz's law. Electromagnets and transformers take advantage of these relationships to manipulate magnetic fields for applications like motors, generators, and power transmission.
current, voltage and resistance
The document discusses key concepts about electricity including:
- Electric current is the flow of charged particles in a circuit. It is measured in amperes.
- Voltage is the electric potential difference between two points in a circuit. It drives the electric current and is measured in volts.
- Resistance opposes the flow of current and is measured in ohms. It varies based on the material's properties.
- Ohm's law states the relationship between current, voltage, and resistance in a circuit. Increased resistance decreases current.
Electric current and its effect
Electric circuit is the path in which electric current flows from a source across various components.
Electric circuit diagram is the diagrammatic representation of an electric circuit.
Electricity
Electricity is a form of energy that is commonly used in everyday devices like heaters, phones, lamps, and fans. It is the flow of electrons through conductors like wires. An electrical circuit requires a power source, conductors to carry the current, and components that use the energy like light bulbs. Circuits can be connected in series or parallel. Voltage, current, and resistance follow Ohm's Law. Common circuit elements include batteries, wires, switches, and fuses. Electricity powers devices by producing effects like light, motion, and heat.
What's hot (20)
Similar to Household Electricity
Pratical electricity
1) The document discusses the safe use of electricity in the home. It describes common electrical appliances like lighting, heating, and motors.
2) It outlines electrical hazards such as damaged insulation, overheating of cables, damp conditions, and carelessness that can cause electric shock.
3) The document provides guidance on safely using electricity through the use of fuses, circuit breakers, earthing of appliances, and double insulation to protect against electric shock.
Practical Electricity
Electricity can be used for heating, lighting, and powering motors. Heating elements get hot when electricity passes through, lighting works when the filament in a bulb is heated to glow, and motors use magnetic fields to convert electricity into rotational motion. Dangers of electricity include damaged insulation, overheating of cables from overloading or thin wires, and damp conditions allowing electricity to pass through water to a person's body. Proper and safe use of electricity in the home requires awareness of these hazards.
Permaculutre Renewable Energy
The document discusses various renewable energy technologies that can be integrated using permaculture design principles. It provides an overview of solar water heating, photovoltaics, wind power, microhydro systems, and biomass energy. It describes the basic workings of these technologies and gives examples of applications and considerations around costs, siting, and performance.
Components used in electrical installations
This document discusses various electrical components used in installations including conductors, cables, flex, trunking, conduit, plugs, sockets, switches, isolators, junction boxes, and timers. It provides details on appropriate cable sizes for different applications, safe installation practices, and the relationships between voltage, current, resistance, wattage, and fuse sizes.
CO2 PPT final.pptx
Electricity is generated at power plants using various methods like burning fossil fuels, nuclear power, or hydropower to heat water into steam. This steam spins turbines that generate electrical current. The high-voltage current is transmitted through long-distance power lines to step-down transformers at substations, which lower the voltage for local distribution. Electricity then travels through smaller wires to reach homes and businesses, powering all modern conveniences. Learning how electricity is produced and transmitted is important for understanding our infrastructure and daily use of this critical resource.
Electricity pale
This document provides information about a technology unit on electricity for 14-year-old students. The unit aims to introduce students to electricity, its effects, and environmental impact. Over the course of a term, students will learn about electric circuits and components, build basic circuits in workshops and simulations, and understand electrical safety and sustainability. Assessment will be built into exercises and practices throughout the unit.
Chapter 8 Generation of Electricity
1. Generators produce electrical energy from mechanical energy. Thermal generators use steam from burning fossil fuels to rotate turbines, which turn generators. Hydroelectric generators use water flowing through dams to rotate turbines connected to generators.
2. Transformers are used to change the voltage of alternating current for transmission and distribution of electrical power. Step-up transformers increase voltage for transmission, while step-down transformers reduce voltage for distribution and use.
3. Electrical power is transmitted through a national grid network via high voltage circuits connecting power stations. It is then distributed to consumers through a system of transformer stations, switch zones, main substations, and branch substations.
Energy efficiency in electrical system and Energy Tariffs in Nepal
This presentation was held in the context of DCCI Capacity Development Workshop December 2013 in Nepal. For further information go to our website.
1 BEET ( Basic Electricals & Electronics ) - Self Study module.pdf
This course covers basic electrical and electronics concepts for trucks and buses. Topics include safety precautions, Ohm's law, batteries, alternators, starters, circuits, wiring diagrams, components, measuring instruments, fault tracing, and basics of electronics. The objectives are for students to understand voltage, current, resistance, component functions, circuit identification, multi-meter usage, open/short circuit characteristics, wiring diagrams, and electrical terms.
Practical electricity
1) The document discusses measuring electrical power, energy, and cost. Power (P) is measured in Watts and can be calculated using P=VI, P=I2R, or P=V2/R. Energy (E) is measured in Joules and can be calculated using E=VIt, E=I2Rt, or E=V2t/R.
2) Electrical energy consumed by homes is measured in kilowatt-hours (kWh). As an example, a 1.5kW heater used for 2 hours would consume 3kWh or 1.08x108Joules of energy.
3) The document also discusses safety features like circuit
Solar powered house
In this ppt u'll find the how to calculate load of ur house, battery size calculation, solar panel size calculation, inverter size calculation.
2850-107 Carrying out electrical assembly (H0) Solution.pptx
This document provides information on carrying out electrical assembly. It discusses recognizing basic electrical accessories and components, electrical safety in the workplace, and general tool descriptions. It also covers topics like electrical wiring assembly, electrical component symbol recognition, and electrical switches, supply devices, and meter symbols. The document includes examples of using engineering notation with SI prefixes to solve problems converting between units like volts, amps, ohms, and watts. It also provides examples solving circuit problems using Ohm's Law and calculating fuse ratings.
How to reach electricity to our homes
This document assigns students to groups for an electrical engineering project and provides background information on electricity. It discusses how electricity is generated at power stations and transmitted through transformers, transmission lines supported by pylons, and distribution lines to homes. Precautions for electric safety are also outlined. The document is submitted by the electrical engineering department of Hormuud University on March 5, 2016 for assignments.
7.5 electrical energy and power
Electrical energy and power can do work when electric current flows in a closed circuit. Electrical energy is supplied by a source and converts into other forms like heat, light, and mechanical energy when current flows through electrical appliances. Power is the rate at which electrical energy is converted or consumed and is measured in watts. Being energy efficient and utilizing appliances wisely can help reduce energy costs and conserve energy by gaining higher useful outputs using less electrical input. Safety devices like fuses prevent overheating and potential fires if too much current flows in a circuit.
EMAG FINALS HW.
This document provides an outline for a course on electromagnetism, electricity, and digital electronics. It covers topics such as the theory of electrons and atoms, resistors, circuits, magnetism, diodes, logic gates, and combinational and sequential circuits. References provided include textbooks on digital design, electronic devices, engineering circuit analysis, and introductions to electric circuits and digital circuits. The document also includes sections on electron theory, atomic structure, conductors and insulators, sources of electricity, alternating and direct current, voltage, current and resistance, and Ohm's law.
COMPLETE FINAL EMAG PPT.
This document provides an outline for a course on electromagnetism, electricity, and digital electronics. The course covers topics such as the theory of electrons and electricity, resistors, Ohm's law, circuits, magnetism, diodes, logic gates, combinational and sequential circuits. References for the course include textbooks on digital design, electronic devices, engineering circuit analysis, and introductions to electric circuits and digital circuits. The document also provides details on some of the topics, including the theory of electrons, insulators/conductors/semiconductors, direct and alternating current, voltage, current, resistance, and Ohm's law.
PRESENTATION ON ELECTRICITY.pptx
WHY ELECRICITY IS IMPORTANT ?
Electricity is an essential part of modern life. People use electricity for lighting, heating, cooling, and refrigeration and for operating appliances, computers, electronics, machinery, and public transportation systems.
Electrical energy is one of the most commonly used forms of energy in the world. It can be easily converted into any other energy form and can be safely and efficiently transported over long distances. As a result, it is used in our daily lives more than any other energy source.
Basic principles of electrical safety
This document discusses electrical safety and provides information on basic electrical principles including electricity, electric current, potential difference, conductors, resistance, and Ohm's law. It also covers safe working practices with electricity such as lock out procedures, personal protective equipment, and portable electrical equipment maintenance. Key risks from electricity like electric shock and electrical fires are explained. The document emphasizes isolating electrical sources, inspecting equipment, and using proper safety procedures to prevent accidents.
Basic Principles of Electrical Safety.ppt
hfoytdryixc vjl;hcyirxl;ghv jk;chiyrsx;guj mn /j;hfpui;jhv jhfuolg bjv puyv /n ;uyfvpujhcv['h ;'jhvpuh ;uy 'jK ;'yifi'hv[87rfi'b jb
Current Electricity Chp-8 General Science 9th 10th
Subject : General Science
Teacher: Mr Ehtisham Ul Haq
Class: BS EDUCATION
Semester: 2nd (Spring(2023-2027)
Date Of Starting Of Semester : 4 September 2023
Date Of End Of Semester : 20 January 2024
University Of Sargodha
Institute of Education
These are the presentation slides that we prepare by our own research and work!
Similar to Household Electricity (20)
Energy efficiency in electrical system and Energy Tariffs in Nepal
Energy efficiency in electrical system and Energy Tariffs in Nepal
1 BEET ( Basic Electricals & Electronics ) - Self Study module.pdf
1 BEET ( Basic Electricals & Electronics ) - Self Study module.pdf
2850-107 Carrying out electrical assembly (H0) Solution.pptx
2850-107 Carrying out electrical assembly (H0) Solution.pptx
Current Electricity Chp-8 General Science 9th 10th
Current Electricity Chp-8 General Science 9th 10th
More from scotfuture
Light & Colour
1. The document provides instructions and objectives for science lessons on various topics including light and color, electricity, and forces.
2. Key concepts to be covered include the speed of light, reflection, refraction, dispersion of white light through a prism, and how rainbows are formed.
3. Students are asked to complete assignments, worksheets, and textbook questions to reinforce their understanding of these scientific principles.
Respiration
Respiration is the release of energy from food through oxidation, producing carbon dioxide and water. There are two types of respiration: aerobic respiration, which occurs in mitochondria and releases more energy using oxygen; and anaerobic respiration, which does not use oxygen. Breathing is the mechanical process of inhaling oxygen into the lungs and exhaling carbon dioxide and water out of the lungs to facilitate respiration. Inspired air contains more oxygen and less carbon dioxide than expired air due to respiration consuming oxygen and producing carbon dioxide.
Photosynthesis
1. Photosynthesis is the process by which plants produce their own food using carbon dioxide, water and sunlight through the action of chlorophyll.
2. The key requirements for photosynthesis are carbon dioxide, water, sunlight, and chlorophyll. Photosynthesis produces glucose and releases oxygen as a byproduct.
3. The rate of photosynthesis is affected by light intensity, carbon dioxide concentration, and temperature - it proceeds fastest at around 40°C and declines above and below this temperature range.
Transmission Of Heat
The document discusses the three mechanisms of heat transfer: conduction, convection, and radiation.
Conduction involves the transfer of heat through direct contact of particles in a material without bulk movement. Conduction occurs faster in metals than other materials. Convection is the transfer of heat by the movement of fluids like liquids and gases. Heated fluids rise and cooler fluids sink, creating convection currents. Radiation transfers heat through electromagnetic waves and does not require a medium, allowing heat transfer through empty space like from the sun to earth.
Effects Of Heat Energy
The document discusses the effects of heat energy on solids, liquids, and gases. It explains that when materials are heated, their particles vibrate more and expand in size, taking up more space. When cooled, particles vibrate less and materials contract. Examples are given such as railway tracks leaving gaps for expansion, pipes being looped to prevent bursting, and balloons rising due to heated air expansion. A particulate model is used to explain that expansion and contraction occur due to changes in the spacing between particles rather than changes in particle size itself.
Changing Matter
The document discusses two types of changes: physical changes and chemical changes. It provides examples of each type of change and notes that chemical changes result in new substances being formed, while physical changes do not. The document also compares and contrasts physical and chemical changes. It notes that chemical changes are permanent and difficult to reverse, while physical changes are temporary and can be reversed.
Reproduction In Human And Issues On Sex
The document summarizes sexual reproduction in animals. It describes the key differences between asexual and sexual reproduction, including that sexual reproduction involves two parents and produces offspring that are genetically different from the parents. It then provides details about the male and female reproductive systems, the process of fertilization, embryonic and fetal development, and childbirth.
More from scotfuture (7)
Household Electricity
- 1. E5: Household Electricity Textbook Page 76
- 15. Do inquiry time and checkpoint Textbook Page 81
- 29. Do checkpoint Page 87