CIE iGCSE Co-Ordinated Science P4.3.2 Series and parallel circuits Exam Style Questions Paper 1
Question
Two lamps are connected in the circuit shown.
Which of these two statements about the circuit are correct?
1) There is a separate switch to control each lamp.
2) The ammeter measures the current in both lamps.
A) neither 1 nor 2
B) 1 only
C) 2 only
D) 1 and 2
▶️Answer/Explanation
Answer: B) 1 only
Explanation: In the circuit, each lamp has a separate switch, but the ammeter measures the total current in the circuit, not just the current in both lamps.
Question
Three resistors are connected in series with a battery, as shown.
The current at point P is 6.0 A.
What is the current at point Q?
A 0 A
B 2.0 A
C 3.0 A
D 6.0 A
▶️Answer/Explanation
Answer: D 6.0 A
Explanation: In a series circuit, the current is the same at all points. Therefore, the current at point Q is the same as at point P, which is 6.0 A.
Question
The diagrams show a series circuit and a parallel circuit. One ammeter in the parallel circuit is
labelled P.
Which statement is correct?
A The total resistance of the series circuit is 3.0 .
B The total resistance of the parallel circuit is 6.0 .
C In the series circuit, the readings on the ammeters are the same.
D In the parallel circuit, the reading on ammeter P is less than the reading on either of the other
two ammeters
▶️Answer/Explanation
Ans :C
Question
Which row shows how lamps are connected in a lighting circuit in a house and gives an advantage of connecting them in this way?
▶️Answer/Explanation
Ans :A