A conducting sphere of radius 10 cm has an unknown charge. If the electric field 20 cm from the centre of the sphere is `1.5 xx 10^(3) N//C` and points radially inward, what is the net charge on the sphere?

A conducting sphere of radius 10 cm has an unknown charge. If the electric field 20 cm from the centre of the sphere is 1.5 xx 10^3N//C and points radially Inward, what Is the net charge on the sphere?

A hollowing insulated conducting sphere is given a positive charge of 10mu what will be the electric field at the center of the sphere if its radius is 2 meters?

A hollowing metallic sphere of radius 10cm is charged such that potential on its surface is 80V. the potential at the center of the sphere would be.

A metal sphere of radius R carrying q (+ve) charges is shown in the figure. br Derive the strength of electric field at a distance r from the centre of sphere.

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 flatten portions.