Physics (AS & A Level) · May / June 2017 · Paper 11 · Question 37

In the circuit shown, the battery and ammeter have negligible resistance. The following combinations of resistors are each separately placed between the terminals X and Y of the circuit. Which combination would give an ammeter reading of 8 A?

1. A1 Ω in series with a parallel combination of 2 Ω and 3 Ω
2. B2 Ω in series with a parallel combination of 1 Ω and 3 Ω
3. C1 Ω and 2 Ω in series, in parallel with 3 Ω
4. D1 Ω, 2 Ω and 3 Ω in parallel

As printed in the paper