A ring of radius R is having two charges `q` and `2q` distributed on its two half parts. The electric potentiasl at a point on its axis at a distance of `2sqrt2 R` from its centre is `(k=1/(4piepsilon_0))`

Show that electric potential at a point P, at a distance .r. from a fixed point charge Q, is given by : V=(1/(4piepsilon_0))Q/r

A ring of radius a contains a charge q distributed. uniformly ober its length. Find the electric field at a point. on the axis of the ring at a distance x from the centre.

A ring of radius a contains a charge q distributed. uniformly ober its length. Find the electric field at a point. on the axis of the ring at a distance x from the centre.

A ring of radius a contains a charge q distributed. uniformly ober its length. Find the electric field at a point. on the axis of the ring at a distance x from the centre.

A ring of radius R is charged uniformly with a charge +Q . The potential at a point on its axis at a distance 'r' from any point on ring will be-

An electric charge Q is uniformly distributed around a thin metallic circular coil of single turn and of radius a. Find the expression for the electric potential at a point on its axis at a distance X form its its centre.

If charge q is induced on outer surface of sphere of radius R, then intensity at a point P at a distance S from its centre is

Charges q is uniformly distributed over a thin half ring of radius R . The electric field at the centre of the ring is

Charges q is uniformly distributed over a thin half ring of radius R . The electric field at the centre of the ring is