Physics

Problem

A singly ionised helium ion (He

^{+}

) is accelerated from rest through a potential difference of

2.0\,\text{kV}

. The kinetic energy gained by the ion is a)

4.0\,\text{keV}

1.0\,\text{keV}

2.0\,\text{keV}

0.50\,\text{keV}