A proton is released from rest at point and moves to point where the electric…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A proton is released from rest at point

P

and moves to point

Q

where the electric potential is

200\,\text{V}

lower than at

P

. Which one of the following statements is correct? (a) Its kinetic energy decreases by

3.2\times10^{-17}\,\text{J}

. (b) Its kinetic energy increases by

1.6\times10^{-17}\,\text{J}

. (c) Its kinetic energy increases by

3.2\times10^{-17}\,\text{J}

. (d) Its kinetic energy increases by

3.2\times10^{-19}\,\text{J}