A non uniformly shaped conductor is charged then at it's sharpest point
If a charged spherical conductor of radius $10\,cm$ has potential $V$ at a point distant $5\,cm$ from its centre, then the potential at a point distant $15\,cm$ from the centre will be
Variation in electric potential is maximum if one goes
Twenty seven drops of same size are charged at $220\, \mathrm{~V}$ each. They combine to form a bigger drop. Calculate the potential of the bigger drop. (In $\mathrm{~V}$)
Calculate potential on the axis of a ring due to charge $Q$ uniformly distributed along the ring of radius $R$.