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4.5.2 The a.c. generator

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Question 13

An alternating current (AC) generator consists of a flat coil rotating inside a uniform magnetic field. Which of the following modifications would cause a decrease in the peak induced electromotive force (e.m.f.)?

A

Decreasing the rate of rotation of the coil.

B

Increasing the cross-sectional area of the coil.

C

Increasing the number of turns in the coil.

D

Using a stronger magnet to increase the magnetic field strength.

Markscheme

4.5.2 The a.c. generator Questions

  1. IGCSE
  2. /Physics
  3. /4.5.2 The a.c. generator

24 exam-style questions on CIE IGCSE Physics 4.5.2 The a.c. generator. Each one has a worked solution and a mark scheme showing where the marks go.

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