Question

what is Electromotive force ?

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Answer 1

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✨Electromotive Force✨

⚫The electromotive force (e) or e.m.f. is the energy provided by a cell or battery per coulomb of charge passing through it, it is measured in volts (V).

⚫It is equal to the potential difference across the terminals of the cell when no current is flowing.

Answer 2

Electromotive Force

The electromotive force or emf of a source is defined as the energy supplied by the source in taking a unit positive charge once round the complete circuit.

emf = work done/ Charge