Physics (AS & A Level) · Oct / Nov 2016 · Paper 13 · Question 32

Two large horizontal metal plates are separated by 4 mm. The lower plate is at a potential of –80 V. Which potential should be applied to the upper plate to create an electric field of strength 60 000 V m–1 upwards in the space between the plates?

1. A–320 V
2. B–160 V
3. C+160 V
4. D+320 V

As printed in the paper