CAIE IGCSE Physics 4.2.3.1 Electromotive Force E M F As the Questions

Practise defining e.m.f. as work done by a source per unit charge around a complete circuit, with the source role made clear in exam questions.

Exam points

State e.m.f. as work done by a source per unit charge around a complete circuit, distinguish source work from energy transfer in an external component, and use e.m.f. and charge to relate source energy and transferred work.

[Maximum number: 2]

The electromotive force (e.m.f.) of a battery is 7.5 V .

Define the term electromotive force.

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