Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

A wire AB is suspended slackly between the N pole and the S pole of a strong magnet. Fig. 10.1 illustrates the setup.
(a(i))[2]

Describe the effect on the wire when the power supply is switched on.

(a(ii))[1]

Describe the motion of the wire.

(b(i))[2]

Explain why a current is shown by the galvanometer.

(b(ii))[2]

State what the galvanometer shows when the wire is moved to the left at the same speed as in (b)(i).

(b(iii))[1]

State what the galvanometer shows when the wire is moved to the right at a much lower speed than in (b)(i).

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: A force acts to the left or right / it shifts left or right

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