Cambridge IGCSE. 2025. Physics (0625). May/June - Paper 2 (22) · Multiple Choice (Extended) - Question 27

Question 27

A student is trying to determine the resistance of a lamp. He sets up the **incorrect** circuit shown.



Which change would allow him to take the measurements needed to calculate the resistance of the lamp?

1. Disconnect the ammeter and move it to the left of the lamp.
2. Swap the positions of the ammeter and the voltmeter in the circuit.
3. Disconnect the ammeter and connect it in parallel with the lamp.
4. Disconnect the voltmeter and connect it in parallel with the lamp.