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`.

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]

Find the electric field and potential at the centre of curvature of a uniformly charged semicircular rod of radius R with a total charge Q in SI. lambda is the linear charge density.

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 -

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 -

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

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