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4.2.3a Electromotive force

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Question 10

A battery has an electromotive force (e.m.f.) of 9.0 V.

What does this statement mean?

A

The battery converts 1.0 J1.0\text{ J}1.0 J of chemical energy into electrical energy when driving 9.0 C9.0\text{ C}9.0 C of charge round a complete circuit.

B

The battery converts 9.0 J9.0\text{ J}9.0 J of chemical energy into electrical energy when driving 1.0 C1.0\text{ C}1.0 C of charge round a complete circuit.

C

The battery converts 9.0 J9.0\text{ J}9.0 J of chemical energy into electrical energy per second when driving 1.0 C1.0\text{ C}1.0 C of charge round a complete circuit.

D

The battery converts 9.0 W9.0\text{ W}9.0 W of power when driving 1.0 C1.0\text{ C}1.0 C of charge round a complete circuit.

Markscheme

4.2.3a Electromotive force Questions

  1. IGCSE
  2. /Physics
  3. /4.2.3a Electromotive force

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.

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