Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

Fig. 11.1 presents lamps connected in series, while Fig. 11.2 presents lamps connected in parallel. All the lamps are identical 6.0 V lamps. Each circuit contains three ammeters A1, A2 and A3.
(a(i))[1]

Compare the readings shown by ammeters A1, A2 and A3 in Fig. 11.1.

(a(ii))[1]

Compare the readings shown by ammeters A1, A2 and A3 in Fig. 11.2.

(a(iii))[2]

State two advantages of connecting the 6.0 V lamps in parallel to the 6.0 V battery, rather than connecting the lamps in series with the battery.

(b(i))[1]

Determine the total resistance of the two lamps connected in series.

(b(ii))[1]

Compare the resistance of one lamp with the total resistance of the two lamps in parallel.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: All three ammeters show the same reading

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