Calculate potential on the axis of a ring due to charge Q uniformly distributed along the ring of radius R.

Where is zero potential point due to point charge?

The electric potential at a point along the axis of an electric dipole depends on distance r from the dipole as

Calculate M.I. of a thin uniform ring about an axis tangent to the ring and in a plane of the ring, if its M.I. about an axis passing through the centre and perpendicular to plane is 4 kgm2 A. 3 kgm^2 B. 6 kgm^2 C. 9 kgm^2 D. 12 kgm^2

10 muC charge is uniformly distributed along a wire of length 5m. Its linear charge density is

Calculate moment of inertia of a ring of mass 500 g and radius 0.5 m about an axis of rotation passing through diameter, tangent perpendicular and tangent perpendicular to its plane.

The uniform charge distribution along the length of the thin rod or wire is called the

Three charges -q, +Qand -q are placed at equal distance on straight line If the potential energy of the system of the three charges is zero, then what is the ratio of Q : q ?

Calculate the electrostatic potential energy of the system of charges shown in the figure.

Define the term potential energy of a charge q at a distance r in an external electric field.