Find the electrostatic energy stored in a cylindrical shell of length I, inner radius a and outer radius b, coaxial with a uniformly charged wire with linear charge density `lambda C//m`.

Find ratio of electric at point A and B. Infinitely long uniformly charged wire with linear charge density lamda is kept along z-axis:

In the given arrangement find the electric field at C in the figure. Here the U-shaped wire is uniformly charged with linear charge density lambda . [0]

A thick conducting spherical shell of inner radius a and outer radius b is shown in figure. It is observed that the inner face of the shell carries a uniform charge density -sigma . The outer surface also carries a uniform surface charge density +sigma . (a) Can you confidently say that there must be a charge inside the shell? Find the net charge present on the shell. (b) Find the potential of the shell.

Two semicircular rings lying in same plane, of uniform linear charge density lambda have radius r and 2r. They are joined using two straight uniformly charged wires of linear charge density lambda and length r as shown in figure. The magnitude of electric field at common centre of semi circular rings is -

The electrostatic potential of a uniformly charged thin spherical shell of charge Q and radius R at a distance r from the centre

Find the electric field at the centre of a uniformly charged semicircular ring of radius R. Linear charge density is lamda

Electric field at a point of distance r from a uniformly charged wire of infinite length having linear charge density lambda is directly proportional to

A conducting spherical shell having inner radius a and outer radius b carries a net charge Q. If a point charge q is placed at the centre of this shell, then the surface charge density on the outer surface of the shell is given as: