A long charged cylinder of linear charged density `lambda` is surrounded by a hollow co-axial conducting cylinder. What is the electric field in the space between the two cylinders?

A non-spherical hollow conductor is given a charge Q. What is the electric field in the cavity?

Two infinite parallel planes have uniform charge densities +-sigma . What is the electric field in the region between the planes

A thin straight infinitely long conducting wire having charge density lambda is enclosed by a cylindrical surface of radius r and lengh l, its axis coinciding with the length of the wire. Find the expression for the electric flux through the surface of the cylinder.

Two charged conducting spheres of radii a and b are connected to each other by a wire. What is the ratio of electric fields at the surfaces of the two spheres? Use the result obtained to explain why charge density on the sharp and pointed ends of a conductor is higher than on its flatter portions.

Two charged conducting spheres of radii a and b are connected to each other by a wire. What is the ratio of electric fields at the surfaces of the two spheres? Use the result obtained to explkain why charge density on the sharp and pointed ends of a conductor is higher than on its flattened portions?

Two charged conducting spheres A and B having radii a and b connected to each other by a copper wire. Find the ratio of the electric fields at the surfaces of the two spheres.

Sketch the electric field lines for a uniformly charged hollow cylinder shown in Fig.

A thin circular ring of radius r is charged uniformaly so that its linear charge density becomes lambda . Derive an expression for the electric for the electric field at a point P at a distance x from it along the axis of the ring. Hence, prove that at large distances (x>>r), the ring behaves as a point charge.

Two point charges q_A = 3 muC and q_B = -3 muC are located 20 cm apart in vacuum. What is the electric field at the midpoint O of the line AB joining the two charges?