Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

Fig. 10.1 illustrates how electrical energy is conveyed from a power station to homes and factories.

(a)[4]

Explain why the arrangement uses both a step-up transformer and a step-down transformer.

(b)[3]

Calculate the p.d. across the secondary coil.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “step up raises the voltage in the power lines” …