Skip to content

Course home

Sign up

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

EasyMediumHard
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647
Question 8

A model wind turbine contains a coil rotating clockwise in a magnetic field. The ends of the coil are labelled P and Q. At one position of the coil, where the induced potential difference is not zero, end P is positive relative to end Q.

The coil is then made to rotate anticlockwise at the same speed.

Which action would make end P positive relative to end Q again when the coil passes that position?

[1]
A

Reverse the magnetic field and keep the coil rotating anticlockwise

B

Reverse the magnetic field and make the coil rotate clockwise again

C

Keep the same magnetic field and make the coil rotate anticlockwise faster

D

Keep the same magnetic field and wind more turns onto the coil

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)

96 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.

Question bank