GCSE Physics Circuit Devices

GCSE Physics Circuit Devices - By Abdul Aziz Yousuf

Circuit devices are components that are used to control the flow of electricity in a circuit. They can be used to:

Turn the circuit on and off (switches)
Control the amount of current that flows through the circuit (resistors)
Change the direction of the current (diodes)
Amplify the current (transistors)
Convert electrical energy into other forms of energy, such as light (LEDs) or heat (resistors)
Here are some of the most common GCSE Physics circuit devices:

Batteries: A battery is a device that stores chemical energy and converts it into electrical energy.
Battery GCSE Physics Circuit Devices
Switches: A switch is a device that can be used to turn a circuit on or off.
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Switches GCSE Physics Circuit Devices
Resistors: A resistor is a device that opposes the flow of current in a circuit.
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Resistors GCSE Physics Circuit Devices
Diodes: A diode is a device that allows current to flow in one direction only.

Diodes GCSE Physics Circuit Devices
Transistors: A transistor is a device that can be used to amplify current or switch a circuit on or off.

Transistors GCSE Physics Circuit Devices
LEDs: An LED is a device that emits light when current flows through it.

General:

Electricity
Circuits
Components
Current
Voltage
Resistance
Power
Energy transfer
Specific devices:

Battery
Switch
Resistor (fixed, variable)
Diode
Transistor (BJT, FET)
LED
Fuse
Capacitor
Inductor
Concepts:

Series circuit
Parallel circuit
Ohm's law
Potential difference
Internal resistance
Current rating
Diode characteristic
Transistor amplification
Light emitting diode
Circuit protection
Additional keywords:

Schematic diagram
Multimeter
Safety
Bonus:

IGBT (Insulated-gate bipolar transistor) - advanced
Op-amp (Operational amplifier) - advanced
Logic gate (e.g. AND, OR) - advanced
Microcontroller - advanced
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