Physics (AS & A Level) · May / June 2018 · Paper 12 · Question 35

A cell of constant electromotive force drives a current I through an external resistor of resistance R. The terminal potential difference (p.d.) across the cell is V. When the internal resistance r of the cell increases, what is the effect on V and on I?

1. AV decreases, I decreases
2. BV decreases, I increases
3. CV increases, I decreases
4. DV increases, I increases

As printed in the paper