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4.2.3a Electromotive force

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Question 43

Three statements about electrical quantities and measuring instruments are given.

  1. A voltmeter must be connected in series with a component to measure the potential difference across it.
  2. An electric current in a metal wire consists of a flow of free electrons.
  3. The potential difference across a component is defined as the energy transferred per unit charge passing through it.

Which statements are correct?

A

1 and 2 only

B

1 and 3 only

C

2 and 3 only

D

1, 2 and 3

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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