A charge Q is uniformly distributed over a long rod AB of length L as shown in the figure. The electric potential at the point O lying at distance L from the end A is

A charge Q is uniformly distributed over a long rod AB of length L as shown in the figure. The electric potential at the point 0 lying at distance L from the end A is

Charge Q is uniformly distributed on a dielectric rod AB of length 2l . The potential at P shown in the figure is equal to

A charge q is uniformly distributed along an insulating straight wire of length 2l as shown in Fig. Find an expression for the electric potential at a point located a distance d from the distribution along its perpendicular bisector.

A charge q is uniformly distributed along an insulating straight wire of length 21 as shown in Fig. Find an expression for the electric potential at a point located a distance d from the distribution along its perpendicular bisector.

A charge Q is distributed uniformly on a ring of radius R as shown in the following diagrams. Find the electric potential at the centre O of the ring