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Electromotive Force
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Potential Difference
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| Similarities: Have same unit (Volt) Can be measured by Voltmeter |
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| Definition The electromotive force (e.m.f.) is defined as the energy per unit charge that is converted from chemical, mechanical, or other forms of energy into electrical energy in a battery or dynamo. |
Definition The potential difference (p.d.) between two points is defined as the energy converted from electrical to other forms when one coulomb of positive charge passes between the two points. |
| Symbol: Denote by the symbol, E. |
Symbol: Denote by the symbol, V |
