Terms : Hide Images
| 16300592684 | Parallel circuit | An electric circuit with two or more paths through which charge can flow |  | 0 |
| 16300592685 | Series circuit | An electric circuit with only one path through which charge can flow |  | 1 |
| 16300592686 | Current | A flow of electric charge. |  | 2 |
| 16300592687 | Potential difference | Energy per unit charge | 3 | |
| 16300592688 | Resistance | The amount of obstruction to charge | 4 | |
| 16300592689 | Ammeter | Equipment used to measure current | 5 | |
| 16300592690 | Voltmeter | Equipment used to measure potential difference | 6 | |
| 16300592691 | Amps | Unit of current | 7 | |
| 16300592692 | Volts | Unit of potential difference | 8 | |
| 16300592693 | Ohm | Unit of resistance | 9 | |
| 16300592720 | I-V Characteristic for Ohmic Conductor |  | 10 | |
| 16300592721 | I-V Characteristic for Filament Lamp |  | 11 | |
| 16300592722 | I-V Characteristic for Diode |  | 12 | |
| 16300592694 | Power | A measure of the rate at which energy is transferred or work is done | 13 | |
| 16300592695 | Direct current | A continuous electric current that flows in one direction only. Current supplied by cells and batteries. | 14 | |
| 16300592696 | Alternating current | A continues electric current that periodically reverses direction, e.g. mains electricity in the UK | 15 | |
| 16300592697 | Electrical potential | The potential difference between the point and some other reference point. | 16 | |
| 16300592698 | Efficiency | The ratio or percentage of useful energy out compared to total energy in for a system or device | 17 | |
| 16300592723 | Three-pin plug |  | 18 | |
| 16300592699 | Colour of live wire | Brown | 19 | |
| 16300592700 | Colour of earth wire | Yellow and green | 20 | |
| 16300592701 | Colour of neutral wire | Blue | 21 | |
| 16300592702 | Fuse | A safety device inside a plug that contains a wire that melts if current becomes too high | 22 | |
| 16300592703 | Cable grip | The part of a plug that secures the three-core cable in place | 23 | |
| 16300592704 | National Grid | The network of high voltage power lines and transformers that connects major power stations, businesses and homes | 24 | |
| 16300592705 | Transformers | A device that transfers an alternating current from one circuit to another to change potential difference | 25 | |
| 16300592706 | Step-up transformer | Devices that increase potential difference | 26 | |
| 16300592707 | Step-down transformer | Devices that decrease potential difference | 27 | |
| 16300592708 | Location of live wire in a plug | To the right | 28 | |
| 16300592709 | Location of earth wire in a plug | To the top | 29 | |
| 16300592710 | Location of neutral wire in a plug | To the left | 30 | |
| 16300592711 | Frequency of mains electricity | 50 Hz | 31 | |
| 16300592712 | Potential different of mains electricity in the UK | 230 V | 32 | |
| 16300592713 | Current = | Charge flow / time | 33 | |
| 16300592714 | Potential difference = | Current x resistance | 34 | |
| 16300592715 | Power = | Current x potential difference | 35 | |
| 16300592716 | Energy = | Charge flow x potential difference | 36 | |
| 16300592717 | Time = | Energy / Power | 37 | |
| 16300592718 | Resistance = | Power / (current)^2 | 38 |
