A proton (charge

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

Problem

A proton (charge

+e

, mass

m_p

) and an alpha particle (charge

+2e

, mass

4m_p

) are each released from rest and accelerated through a potential difference of

1.50\,\text{kV}

. Calculate the ratio of their final speeds

v_p / v_{\alpha}