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Physics
Grade 10: Electric Circuits
| Term | Definition |
|---|---|
| Potential difference across the ends of a conductor | The energy transferred per unit electric charge flowing through it. |
| Emf | The work done per unit charge by the source (battery). |
| Terminal potential difference | The voltage measured across the terminals of a battery when charges are flowing in the circuit. |
| Current strength | The rate of flow of charge. |
| Resistance | The ratio of the potential difference across a resistor to the current in the resistor. |
| Unit of resistance | One ohm (Ω) is equal to one volt per ampere. |
| Ohm's law | The potential difference across a conductor is directly proportional to the current in the conductor at constant temperature. |