The potential difference (p.d.) across a component in an electrical circuit is defined in terms of which quantities?
the energy transferred per unit charge passing through the component
the energy transferred per unit current passing through the component
the power transferred per unit charge passing through the component
the power transferred per unit current passing through the component
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.