The energy which an $e^-$ acquires when accelerated through a potential difference of $1 \, V$ is called:

Which of the following graphs correctly shows how the electrostatic potential $V$ varies with distance $r$ from a point charge?

The electrostatic potential energy of the given system of charges placed at the corners of a square of side $a$ is:

Draw a graph showing the variation of electric potential $V$ with distance $r$ from the center for a uniformly charged spherical shell of radius $R$.

An electron is accelerated through a potential difference of $2.5 \ V$. The energy gained by the electron is . . . . . . . (Charge of an electron = $1.6 \times 10^{-19} \ C$)

If the electric potential of the inner metal sphere of radius $a$ is $10 \text{ V}$ and that of the outer spherical shell of radius $b$ is $5 \text{ V}$,then the potential at the centre will be ...... $\text{V}$.