Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

Fig. 12.1 illustrates two circuits, A and B, that are connected by a relay.
(a)[3]

Describe what occurs in both circuits when switch S is closed.

(b)[3]

Calculate the transformer output voltage.

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This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Current passes through relay coil” …

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