Physics (AS & A Level) · May / June 2023 · Paper 11 · Question 35

A battery with internal resistance is connected to a fixed resistor, an ammeter and a voltmeter, as shown. The battery is replaced by a different battery that has the same electromotive force (e.m.f.) but a greater internal resistance. What happens to the readings on the ammeter and voltmeter?

1. Aammeter reading decreases, voltmeter reading decreases
2. Bammeter reading decreases, voltmeter reading stays the same
3. Cammeter reading stays the same, voltmeter reading decreases
4. Dammeter reading stays the same, voltmeter reading stays the same

As printed in the paper