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13.1 Inducing a current

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Question 14
H

In a power station, a turbine rotates a magnet inside stationary coils connected to a complete circuit.

Which statement explains why a current is produced?

[1]
A

Rotation changes the magnetic field through the coils and induces a potential difference.

B

Rotation transfers electric charge from the magnet to the coils and produces a current.

C

Rotation heats the magnet and makes its poles release electrons into the coils.

D

Rotation makes the field constant through the coils and maintains a potential difference.

Markscheme

13.1 Inducing a current Questions

  1. GCSE
  2. /Physics
  3. /13.1 Inducing a current

92 exam-style questions on Edexcel GCSE Physics 13.1 Inducing a current, covering 13.1.1 Producing an electric current by induction, 13.1.2 Factors affecting the induced potential difference, 13.1.3 Alternators and dynamos, and 13.1.4 Microphones and loudspeakers. Each one has a worked solution and a mark scheme showing where the marks go.

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