Question

wrote about Electromotive Force...​

Answer 1

Electromotive force, abbreviation E or emf, energy per unit electric charge that is imparted by an energy source, such as an electric generator or a battery. ... Electromotive force is the characteristic of any energy source capable of driving electric charge around a circuit.

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Answer 2

Answer:

In electromagnetism and electronics, electromotive force is the electrical action produced by a non-electrical source. Devices provide an emf by converting other forms of energy into electrical energy, such as batteries or generators. Sometimes an analogy to water pressure is used to describe electromotive force.