Physics (AS & A Level) · Oct / Nov 2016 · Paper 12 · Question 32

The diagram shows a junction in a circuit where three wires P, Q and R meet. The currents in P and Q are 1 A and 3 A respectively, in the directions shown. How much charge passes a given point in wire R in a time of 5 s?

1. A0.4 C
2. B2 C
3. C10 C
4. D20 C

As printed in the paper