Electrical Circuits P16.2 0.0 / 5 ? PhysicsElectricityIGCSEAQA Created by: Angus00Created on: 10-03-16 20:09 A Cell: This is necessary to push electrons around a complete circuit. A battery consists of 2 or more cells. . 1 of 14 A Switch: Enables the current in a circuit to be switched on or off. . 2 of 14 Light Bulb: Its a light bulb! . 3 of 14 A diode: This allows current through in one direction only. . 4 of 14 LED (light emitting diode): Emits light when current passes through it. . 5 of 14 Ammeter: Used to measure electrical current. . 6 of 14 Fixed resistor: Limits the current in a circuit. . 7 of 14 Variable resistor: Allows the current to be varied. . 8 of 14 Fuse: Breaks the circuit if the current exceeds a certain amount. . 9 of 14 A heater: Designed to transfer electrical energy to, heat surroundings. . 10 of 14 Voltmeter: Used to measure potential difference . 11 of 14 What is electrical charge? Electrical charge is a flow of charge due to electrons being forced to move. 12 of 14 What is electrical current measured in;? Amps 13 of 14 What is electrical charge measured in? Coulombs 14 of 14
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