A battery is connected to a circuit. It is switched on for 2.5 minutes2.5\text{ minutes}2.5 minutes. During that time, there is a current of 0.40 A in the circuit and the battery supplies a total of 540 J of energy. Which of the following options correctly gives the charge that passes in the circuit and the electromotive force (e.m.f.) of the battery?
Charge = 1.0 C1.0\text{ C}1.0 C, e.m.f. = 9.0 V9.0\text{ V}9.0 V
Charge = 1.0 C1.0\text{ C}1.0 C, e.m.f. = 540 V540\text{ V}540 V
Charge = 60 C60\text{ C}60 C, e.m.f. = 9.0 V9.0\text{ V}9.0 V
Charge = 60 C60\text{ C}60 C, e.m.f. = 540 V540\text{ V}540 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.