Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

Fig. 11.1 illustrates a relay.

(a(i))[1]

State the meaning of direct current.

(a(ii))[2]

State a suitable material for Y and explain why this material is used to make it.

(b)[3]

Use Fig. 11.1 to explain why this occurs.

(c)[1]

Suggest why thicker wires are needed in circuit 2.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Current flows in one direction (owtte)” …