Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

Fig. 9.1 shows a circuit containing a battery with electromotive force (e.m.f.) 12 V. The ammeter reads 0.15 A.
(a)[2]

Calculate the resistance of the circuit.

(b(i))[1]

State what happens to the ammeter reading.

(b(ii))[2]

State and explain what happens to the voltmeter reading.

(c(i))[2]

Explain, in terms of electrical energy, the meaning of an electromotive force (e.m.f.) of 1.5 V.

(c(ii))[1]

State the number of 1.5 V cells connected in series to make the battery.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: R = V \div I or 12 \div 0.15

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI