A regular hexagon of side 10 cm has a charge `5 muC` at each of its vertices. Calculate the potential at the centre of the hexagon.

A hexagon of side 0.1 m has a charge 10 mu C at each of its vertices. Calculate the electric potential at the centre of the hexagon.

A cube of side b has a charge q at each of its vertices. Determine the potential and electric field due to this charge array at the centre of the cube.

A hollow metallic sphere of radius 10 cm is charged, such that potential of its surface is 70 V. The potential at the centre of the sphere would be

A hollow metal sphere of radius 5 cm is charged, such that the potential on its surfae is 10 V. The potential at the centre of the sphere is

A metal wire is bent into a circle of radius 10 cm. It is given a charge of 200 muC , which spreads on it uniformly, Calculate the electric potential at its centre.

Four point charges 16muC, - 16muC, 16muC and -16muC are located at the corners of a square of each side 10 cm. Find the vlaue of electric field intensity and electric potential at the centre of the square.

The radii of two charged metallic sphers are 5 cm and 10 cm, Each has a charge of 75muC . They are connected by a conducting wire. Calculate common potential of the spheres after connecting.

Five point charges, each having a charge q are placed on the five croners A,B,C, D and E of a regular hexagon ABCDEF having each side of length a. Find the electric field at the centre of the hexagon.

The centre of a regular hexagon is at the point z = i. If one of its vertices is at 2 + i, then the adjacent vertices of 2 + i are at the points :