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4.2 Uses of magnetism

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Question 11
H

Which statement correctly describes the outputs of an alternator and a dynamo?

[1]
A

An alternator generates d.c. and a dynamo generates a.c.

B

Both generate a.c., but a dynamo has a higher frequency

C

An alternator generates a.c. and a dynamo generates d.c.

D

Both generate d.c., but an alternator has a larger output

Markscheme

4.2 Uses of magnetism Questions

  1. GCSE
  2. /Physics
  3. /4.2 Uses of magnetism

48 exam-style questions on OCR GCSE Physics 4.2 Uses of magnetism, covering 4.2.1 The motor effect, 4.2.2 Fleming's left-hand rule, 4.2.3 The force on a current-carrying conductor, 4.2.4 The electric motor, 4.2.5 Electromagnetic induction, 4.2.6 Alternators and dynamos, 4.2.7 How transformers work, 4.2.8 Transformer turns ratio, 4.2.9 Potential differences and turns in transformers, and 4.2.10 Microphones, loudspeakers and headphones. Each one has a worked solution and a mark scheme showing where the marks go.

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