A battery moves 4.0 C of charge round a complete circuit. The battery transfers 36 J of energy during this process. What is the electromotive force (e.m.f.) of the battery?
0.11 V0.11\text{ V}0.11 V
9.0 V9.0\text{ V}9.0 V
36 V36\text{ V}36 V
144 V144\text{ V}144 V
55 exam-style questions on CIE IGCSE Physics 4.2.3a Electromotive force. Each one has a worked solution and a mark scheme showing where the marks go.