Electricity — IGCSE Physics (Edexcel)

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Electricity — IGCSE Physics (Edexcel)

Categories IGCSE Physics (Edexcel)

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Course Curriculum

2.1 Units Used
We will learn what measuring units are used in Electricity and how do we represent them.

2.1 use the following units: ampere, coulomb, joule, ohm, second, volt and watt

00:00
Quiz: Measuring units in electricity

2.2 Mains Electricity– Hazards of Mains Electricity
What is Mains Electricity, how do we represent it

2.2(a): understand how the use of insulation, double insulation, earthing, fuses and circuit breakers protects the device or user in a range of domestic appliances.

00:00
Quiz 2.2a: Mains electricity–basics 1
2.2(b) Mains electricity is AC voltage while voltage in cells and batteries are DC type voltages

00:00
Quiz 2.2b: AC and DC voltages and currents
2.2(c) Hazards of Mains Electricity

00:00
Quiz 2.2c: Hazards of Mains electricity
2.2(d) Avoiding Hazards of Mains Electricity
2.2(e) Difference between Circuit Breaker and Fuse

00:00
Quiz 2.2_d_e

2.3 Mains Electricity — Heating Effect of Current
When current flows through a resistor or any metal it produces heating effect that increases the temperature of an appliance. Examples, cloth iron, electric heater etc.

2.4 Mains Electricity — Electrical Power
How can we calculate electrical power in a metal or a resistor

2.5 Mains Electricity — How electrical energy can be calculated
Electrical energy consumed by a resistor or an appliance can be worked out by E = V x I x t.

2.6 Mains Electricity — Difference between AC and DC electricity
Electricity is carried by currents and voltages. These are of two types: AC and DC. How they are different from each other and where they are used

2.7 Energy and Voltage in circuits –Difference & Applications of Series and Parallel Circuit
Electrical Energy is carried by electrical circuits. These are of two types: Series and Parallel. In this lesson, we would look at how they are different from each other and what are their applications

2.8 Energy and Voltage in circuits –how current varies in series circuit by changing voltage
Current and Voltages are varied differently in series and parallel circuits

2.9 Energy and Voltage in circuits — how current varies with voltage in different circuit components
how current varies with changes in voltage in different circuit components

2.9 Energy and Voltage in circuits — circuit components

00:00
2.9 Energy and Voltage in circuits — This circuit should be used to check current variations with voltage with any circuit component and an experiment with metal wire

00:00
2.9 Energy and Voltage in circuits — How current varies when voltage is changed across a metal wire or a fixed resistor

00:00
2.9 Energy and Voltage in circuits — How current varies when voltage is changed across a filament lamp

00:00
2.9 Energy and Voltage in circuits — How current varies when voltage is changed across a diode

00:00
Quiz 2.9a–recall electrical symbols
Quiz 2.9 current and voltage correspondence for different components

2.10 Energy and Voltage in circuits — how resistance changes current in a metal at atomic scale
What really happens to current, as a flow of electrons, when resistance as a vibration of atoms at their own position effect them.

2.11 Energy and Voltage in circuits — Light Dependent Resistors (LDR) and Thermistors
How the resistance varies in semiconductor materials, LDRs and Thermistors

2.12 Energy and Voltage in circuits — how current can be shown with lamps and LEDs
The presence of current can be shown by lighting of bulb and LED. Ammeter can show the presence and the amount of current flowing in the circuit.

2.13 Energy and Voltage in Circuits — 2.13 voltage and current relationship in metals and resistors
This section is about Ohm's law

2.14 Energy and Voltage in Circuits — 2.14,2.15,2.16 Definition of current
Current as a rate of flow of charges

2.15 Energy and Voltage in Circuits — conservation of charges
Charge is a fundamental quantity that remains conserved

2.16 Energy and Voltage in Circuits — Voltage across parallel components
Voltage is one of the most fundamental aspect of a circuit. No voltage, no use of circuit.

2.17 Energy and Voltage in Circuits –V,I,R calculations in series circuits
Applying Ohm's law

2.18 Electric Charge — name materials that are insulators and conductors
Electric charges can easily be stored on insulators.

2.19 Electric Charge — how insulators can be charged by friction
rubbing two insulators charge them

2.20 Electric Charge — loss and gain of electrons on charged object
When two insulators are rubbed they get charged. This is because one loses electrons and other one gains electrons.

2.21 Electric Charge — attraction and repulsion between charges
There're two types of charges +ve and -ve. Like charges repel and unlike charges attract.

2.22 Electric Charge — uses of electrostatic charges
Daily and Industrial applications of static electricity

2.28 Photocopier
Quiz 2.28 Photocopier
2.28 Electrostatic Precipitator
Quiz 2.28 Electrostatic Precipitator
2.28 Ink-Jet Printer

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Quiz 2.28 Ink Jet Printer
2.28: Electrostatic Painting

00:00
Quiz 2.28 electrostatic painting
2.28: Van De Graff Generator

00:00
2.28: Lighting Strike
2.28: Dangers of electrostatics

00:00

Topic related past papers questions

Consolidated Quiz

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July 18, 2023

A course by

khalid mazhar

Electricity — IGCSE Physics (Edexcel)

What I will learn?

Course Curriculum

2.1 Units Used We will learn what measuring units are used in Electricity and how do we represent them.

2.1 use the following units: ampere, coulomb, joule, ohm, second, volt and watt

Quiz: Measuring units in electricity

2.2 Mains Electricity– Hazards of Mains Electricity What is Mains Electricity, how do we represent it

2.2(a): understand how the use of insulation, double insulation, earthing, fuses and circuit breakers protects the device or user in a range of domestic appliances.

Quiz 2.2a: Mains electricity–basics 1

2.2(b) Mains electricity is AC voltage while voltage in cells and batteries are DC type voltages

Quiz 2.2b: AC and DC voltages and currents

2.2(c) Hazards of Mains Electricity

Quiz 2.2c: Hazards of Mains electricity

2.2(d) Avoiding Hazards of Mains Electricity

2.2(e) Difference between Circuit Breaker and Fuse

Quiz 2.2_d_e

2.3 Mains Electricity — Heating Effect of Current When current flows through a resistor or any metal it produces heating effect that increases the temperature of an appliance. Examples, cloth iron, electric heater etc.

2.3 understand why a current in a resistor results in the electrical transfer of energy and an increase in temperature, and how this can be used in a variety of domestic contexts.

Quiz 2.3: Heating effect of current

2.4 Mains Electricity — Electrical Power How can we calculate electrical power in a metal or a resistor

2.4 know and use the relationship between power, current and voltage: power = current × voltage P = I × V and apply the relationship to the selection of appropriate fuses

Quiz 2.4–electrical power

2.5 Mains Electricity — How electrical energy can be calculated Electrical energy consumed by a resistor or an appliance can be worked out by E = V x I x t.

2.5 use the relationship between energy transferred, current, voltage and time: energy transferred = current × voltage × time E = I × V x t

Quiz 2.5

2.6 Mains Electricity — Difference between AC and DC electricity Electricity is carried by currents and voltages. These are of two types: AC and DC. How they are different from each other and where they are used

2.6 know the difference between mains electricity being alternating current (a.c.) and direct current (d.c.) being supplied by a cell or battery

Quiz 2.6

2.7 Energy and Voltage in circuits –Difference & Applications of Series and Parallel Circuit Electrical Energy is carried by electrical circuits. These are of two types: Series and Parallel. In this lesson, we would look at how they are different from each other and what are their applications

2.7(a): What is a circuit– a preamble

2.7(b): Series Circuit— currents and voltages

2.7(c): Parallel Circuit–currents and voltages

2.7(d): currents and voltages in mixed circuits(combination of series and parallel)

2.7(e): Difference between Series and Parallel Circuit

Lesson 2.7(f): Applications of Series and Parallel Circuits

Phet Simulations on circuits

Quiz 2.7– Series and Parallel Circuit

2.8 Energy and Voltage in circuits –how current varies in series circuit by changing voltage Current and Voltages are varied differently in series and parallel circuits

2.8 understand how the current in a series circuit depends on the applied voltage and the number and nature of other components

Quiz

2.9 Energy and Voltage in circuits — how current varies with voltage in different circuit components how current varies with changes in voltage in different circuit components

2.9 Energy and Voltage in circuits — circuit components

2.9 Energy and Voltage in circuits — This circuit should be used to check current variations with voltage with any circuit component and an experiment with metal wire

2.9 Energy and Voltage in circuits — How current varies when voltage is changed across a metal wire or a fixed resistor

2.9 Energy and Voltage in circuits — How current varies when voltage is changed across a filament lamp

2.9 Energy and Voltage in circuits — How current varies when voltage is changed across a diode

Quiz 2.9a–recall electrical symbols

Quiz 2.9 current and voltage correspondence for different components

2.10 Energy and Voltage in circuits — how resistance changes current in a metal at atomic scale What really happens to current, as a flow of electrons, when resistance as a vibration of atoms at their own position effect them.

2.10 describe the qualitative effect of changing resistance on the current in a circuit

Quiz 2.10 Resistance at atomic scale

2.11 Energy and Voltage in circuits — Light Dependent Resistors (LDR) and Thermistors How the resistance varies in semiconductor materials, LDRs and Thermistors

2.11(a): describe the qualitative variation of resistance of light-dependent resistors (LDRs) with light illumination

Lesson2.11(b) describe the qualitative variation of resistance of Thermistors with Temperature

Quiz 2.11–LDR and Thermistor

2.12 Energy and Voltage in circuits — how current can be shown with lamps and LEDs The presence of current can be shown by lighting of bulb and LED. Ammeter can show the presence and the amount of current flowing in the circuit.

2.12 know that lamps and LEDs can be used to indicate the presence of a current in a circuit.

Quiz 2.12

2.13 Energy and Voltage in Circuits — 2.13 voltage and current relationship in metals and resistors This section is about Ohm's law

2.13 know and use the relationship between voltage, current and resistance: voltage = current × resistance V = I × R

Quiz 2.13–Ohms law

2.14 Energy and Voltage in Circuits — 2.14,2.15,2.16 Definition of current Current as a rate of flow of charges

2.14,2.15,2.16 know that current is the rate of flow of charge

Quiz

2.15 Energy and Voltage in Circuits — conservation of charges Charge is a fundamental quantity that remains conserved

2.17 understand why current is conserved at a junction in a circuit.

Quiz 2.17

2.16 Energy and Voltage in Circuits — Voltage across parallel components Voltage is one of the most fundamental aspect of a circuit. No voltage, no use of circuit.

2.18 know that the voltage across two components connected in parallel is the same

Quiz 2.18

2.17 Energy and Voltage in Circuits –V,I,R calculations in series circuits Applying Ohm's law

2.19 calculate the currents, voltages and resistances of two resistive components connected in a series circuit

Quiz 2.19

2.18 Electric Charge — name materials that are insulators and conductors Electric charges can easily be stored on insulators.

2.22P identify common materials which are electrical conductors or insulators, including metals and plastics

Quiz 1.22

2.19 Electric Charge — how insulators can be charged by friction rubbing two insulators charge them

2.23P practical: investigate how insulating materials can be charged by friction.

Quiz 2.23

2.20 Electric Charge — loss and gain of electrons on charged object When two insulators are rubbed they get charged. This is because one loses electrons and other one gains electrons.

2.1 Units Used
We will learn what measuring units are used in Electricity and how do we represent them.

2.2 Mains Electricity– Hazards of Mains Electricity
What is Mains Electricity, how do we represent it

2.3 Mains Electricity — Heating Effect of Current
When current flows through a resistor or any metal it produces heating effect that increases the temperature of an appliance. Examples, cloth iron, electric heater etc.

2.4 Mains Electricity — Electrical Power
How can we calculate electrical power in a metal or a resistor

2.5 Mains Electricity — How electrical energy can be calculated
Electrical energy consumed by a resistor or an appliance can be worked out by E = V x I x t.

2.6 Mains Electricity — Difference between AC and DC electricity
Electricity is carried by currents and voltages. These are of two types: AC and DC. How they are different from each other and where they are used

2.7 Energy and Voltage in circuits –Difference & Applications of Series and Parallel Circuit
Electrical Energy is carried by electrical circuits. These are of two types: Series and Parallel. In this lesson, we would look at how they are different from each other and what are their applications

2.8 Energy and Voltage in circuits –how current varies in series circuit by changing voltage
Current and Voltages are varied differently in series and parallel circuits

2.9 Energy and Voltage in circuits — how current varies with voltage in different circuit components
how current varies with changes in voltage in different circuit components

2.10 Energy and Voltage in circuits — how resistance changes current in a metal at atomic scale
What really happens to current, as a flow of electrons, when resistance as a vibration of atoms at their own position effect them.

2.11 Energy and Voltage in circuits — Light Dependent Resistors (LDR) and Thermistors
How the resistance varies in semiconductor materials, LDRs and Thermistors

2.12 Energy and Voltage in circuits — how current can be shown with lamps and LEDs
The presence of current can be shown by lighting of bulb and LED. Ammeter can show the presence and the amount of current flowing in the circuit.

2.13 Energy and Voltage in Circuits — 2.13 voltage and current relationship in metals and resistors
This section is about Ohm's law

2.14 Energy and Voltage in Circuits — 2.14,2.15,2.16 Definition of current
Current as a rate of flow of charges

2.15 Energy and Voltage in Circuits — conservation of charges
Charge is a fundamental quantity that remains conserved

2.16 Energy and Voltage in Circuits — Voltage across parallel components
Voltage is one of the most fundamental aspect of a circuit. No voltage, no use of circuit.

2.17 Energy and Voltage in Circuits –V,I,R calculations in series circuits
Applying Ohm's law

2.18 Electric Charge — name materials that are insulators and conductors
Electric charges can easily be stored on insulators.

2.19 Electric Charge — how insulators can be charged by friction
rubbing two insulators charge them

2.20 Electric Charge — loss and gain of electrons on charged object
When two insulators are rubbed they get charged. This is because one loses electrons and other one gains electrons.

2.21 Electric Charge — attraction and repulsion between charges
There're two types of charges +ve and -ve. Like charges repel and unlike charges attract.

2.22 Electric Charge — uses of electrostatic charges
Daily and Industrial applications of static electricity