Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

Fig. 9.1 depicts a mobile phone (cell phone) being charged on a wireless charging plate.
(a)[3]

Explain how a current is generated in the secondary coil.

(b(i))[1]

Show that this greatest energy is $4.3 \times 10^4$ J.

(b(ii))[3]

Show that this statement is true.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “AC in primary generates a changing magnetic field” …

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