As a battery moves $3.0\ \text{C}$ of charge around a full circuit, $12\ \text{J}$ of energy are transferred during the process. What is the electromotive force (e.m.f.) of the cell?
- A$0.25\ \text{V}$
- B$4.0\ \text{V}$
- C$12\ \text{V}$
- D$36\ \text{V}$
Physics 0625 · IGCSE · Electrical quantities