Question

Electromotive force represents

• A. force
• B. energy
• C. energy per unit charge
• D. current

Answer 1

Answer: (C)

energy per unit charge

Electromotive force is the potential difference (or voltage $V$) of the cell.

Using $V=\frac{W}{q}$

where $W$ is the work done in moving a charge $q$ from one point to another having potential difference $V$.

Thus electromotive force represents energy per unit charge.