In Milikan’s experiment, an oil drop having charge $q$ gets stationary on applying a potential difference $V$ in between two plates separated by a distance $‘d’$. The weight of the drop is
$qVd$
$q\frac{d}{V}$
$\frac{q}{{Vd}}$
$q\frac{V}{d}$
The mass of the electron varies with
Positive rays consists of
When the speed of electrons increases, then the value of its specific charge
How mass of an electron can be obtained ?
An electron is moving in electric field and magnetic field it will gain energy from