Physics (AS & A Level) · Oct / Nov 2017 · Paper 12 · Question 32

An electron moves between two points X and Y in a uniform electric field, as shown. The distance between X and Y is 4.0 cm and the line XY is at an angle of 60° to the direction of the field. The field exerts the only force on the electron. The field strength is 100 N C–1. What is the change in the kinetic energy of the electron as it moves from X to Y?

1. A– 4 eV
2. B–2 eV
3. C+2 eV
4. D+4 eV

As printed in the paper