Physics (AS & A Level) · May / June 2024 · Paper 12 · Question 30

The diagram shows a cell of negligible internal resistance connected to a switch and two resistors of resistances R and 2R. The circuit also contains two ammeters X and Y. The reading on X is 4.0 A when the switch is open. What are the readings on X and Y after the switch is closed?

1. Areading on X / A: 4.0, reading on Y / A: 1.3
2. Breading on X / A: 4.0, reading on Y / A: 2.7
3. Creading on X / A: 6.0, reading on Y / A: 2.0
4. Dreading on X / A: 6.0, reading on Y / A: 4.0

As printed in the paper