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7.3 Induced potential, transformers and the National Grid (HT only)

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Question 12
H

A magnet is dropped through a coil. The oscilloscope trace shows two pulses in opposite directions. The second pulse is taller and narrower than the first. Which statement explains the second pulse?

[1]
A

The magnet moves faster as it leaves, so the field changes more quickly

B

The magnet moves faster as it leaves, so the magnetic field is stronger

C

The magnet is nearer the coil as it leaves, so the field changes more quickly

D

The lower pole of the magnet is stronger, so the magnetic field is stronger

Markscheme

7.3 Induced potential, transformers and the National Grid (HT only) Questions

  1. GCSE
  2. /Physics
  3. /7.3 Induced potential, transformers and the National Grid (HT only)

40 exam-style questions on AQA GCSE Physics 7.3 Induced potential, transformers and the National Grid (HT only), covering 7.3.1 Induced potential (HT only), 7.3.2 Uses of the generator effect (HT only), 7.3.3 Microphones (HT only), and 7.3.4 Transformers (HT only). Each one has a worked solution and a mark scheme showing where the marks go.

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