Question

what is the EMF of the battery​

Answer 1

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Electromotive force (EMF) is equal to the terminal potential difference when no current flows. EMF (ϵ) is the amount of energy (E) provided by the battery to each coulomb of charge (Q) passing through.

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Answer 2

Electromotive force (EMF) is equal to the terminal potential difference when no current flows. ... EMF (ϵ) is the amount of energy (E) provided by the battery to each coulomb of charge (Q) passing through.