Question

State whether the following statement is True or False.

SI unit of electromotive force is newton.

Answer 1

This statement is false.

Explanation:

• Electromotive force (e.m.f.) is the work done per unit charge, i.e., e.m.f. = work/charge.
• Work is measured in joules and charge in coulombs, so the SI unit of e.m.f. is joule/coulomb, which is the volt (V).
• Newton is the SI unit of force. The correct fact is that the SI unit of e.m.f. is the volt.