A proton (mass

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A proton (mass

1.67\times10^{-27}\,\text{kg}

, charge

+1.60\times10^{-19}\,\text{C}

) enters a region of uniform electric field with an initial speed of

1.0\times10^{5}\,\text{m/s}

. Determine the potential difference the proton must traverse, moving in the direction of the field, to increase its speed to

3.0\times10^{5}\,\text{m/s}