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

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Question 2
H

Figure shows a student pushing a bar magnet into a coil of wire. The coil is connected to an oscilloscope.

Figure: A bar magnet being pushed north pole first into a coil of wire that is connected to an oscilloscope

image

a.

Describe what happens to the trace on the oscilloscope while the magnet is being pushed into the coil, and then while the magnet is held still inside the coil.

[2]
b.

The student pushes the same magnet into the same coil more quickly. Describe two changes to the pulse shown on the oscilloscope.

[2]
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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