Question

Electromotive force represents

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

Answer 1

The correct option is C

energy per unit charge

1. Electromotive force is abbreviated as e.m.f.
2. It is the work done or energy per unit charge.
3. Electromotive force is sustained by a battery in a circuit.
4. This lets the circuital current flow.
5. The unit of e.m.f is joule per coulomb or volt.
6. The $V=\frac{W}{q}$, where W is the work done or energy, q is the charge and V is the e.m.f.

Hence option C is correct, Electromotive force represents energy per unit charge.