Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

Fig. 10.1 depicts two wire coils, P and Q, each placed in its own circuit. Their ends lie close together, but they do not make contact.
(a)[3]

Explain why the pointer in sensitive ammeter G moves.

(b)[3]

Describe the construction of a step-up transformer. You may include a labelled diagram in your answer.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A current passes through coil P when the switch is closed” …

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