An electron of charge $‘e’$ coulomb passes through a potential difference of $V$ volts. Its energy in ‘joules’ will be
$V/e$
$eV$
$e/V$
$V$
From the following, what charges can be present on oil drops in Millikan's experiment
(Here e is the electronic charge)
Positive rays consists of
An electron is accelerated through a potential difference of $1000$ volts. Its velocity is nearly
The ratio of momenta of an electron and an $\alpha - $particle which are accelerated from rest by a potential difference of $100 V$ is
In Thomson spectrograph experiment, four positive ions $P,Q,R$ and $S$ are situated on $Y-X$ curve a shown in the figure