When a proton is accelerated with $1 \, V$ potential difference,then its kinetic energy is .......... $eV$.

$A$ polythene piece rubbed with wool is found to have a negative charge of $3 \times 10^{-7} \;C$.
$(a)$ Estimate the number of electrons transferred (from which to which?)
$(b)$ Is there a transfer of mass from wool to polythene?

What is the Greek meaning of the word 'electrics'?

Why is a spark seen when removing synthetic clothes in the dark during winter?

$A$ conductor has $14.4 \times 10^{-19} \ C$ of positive charge. The conductor has (Charge on an electron $= 1.6 \times 10^{-19} \ C$):

$A$ body can be negatively charged by which of the following methods?