GCE O-Level · Physics (6091)

Series and parallel circuits: Practice Questions

5 multiple-choice questions marked as you go, and 3 written questions with worked solutions. All on Series and parallel circuits.

8 questions15 marksFree, no account

Question 1

1 mark

In a simple series circuit consisting of a cell and two identical lamps, which statement correctly describes the current at different points in the circuit?

Question 2

1 mark

Two resistors with resistances of \(4 \Omega\) and \(12 \Omega\) are connected in parallel. What is the effective resistance of this combination?

Question 3

1 mark

In the circuit shown, a \(12 \text{ V}\) battery is connected to a \(6 \Omega\) resistor in series with a parallel combination of two \(4 \Omega\) resistors. What is the total current flowing from the battery?

Question 4

1 mark

A parallel circuit has two branches connected across a \(12 \text{ V}\) battery. If the potential difference across the first branch is \(12 \text{ V}\), what is the potential difference across the second branch?

Question 5

1 mark

In the circuit shown, the ammeter reading is \(2.0 \text{ A}\). If an identical resistor is added in series with the existing resistor, what will be the new reading on the ammeter?

Question 6

2 marks

In the circuit shown, the ammeter \( A_1 \) indicates a current of \( 0.4 \text{ A} \). Determine the reading on ammeter \( A_2 \) and explain your reasoning.

Write your answer out first, then check it against the worked solution.

Question 7

5 marks

Using the values provided in the circuit diagram, calculate the total current \( I \) that flows out of the battery.

Write your answer out first, then check it against the worked solution.

Question 8

3 marks

Calculate the effective resistance of the arrangement of two resistors connected in parallel as shown in the diagram.

Write your answer out first, then check it against the worked solution.

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