An electron is placed at the centre of a Conducting sphere of radius `0.2` metre having a charge `5xx10^(-2)` coulomb.The force on the electron is

A conducting sphere of radius 10 cm is given a charge of +2xx10^(-8)C . What will be its potential?

Surface charge density of a conducting sphere of a radius 10 cm is 8.85 xx 10^(-8) c//m^(2) . Potential at the centre of the sphere is

A one coulomb charge is placed on an insulated stand at the centre of a spherical conductor of radius Im. The sphere is given a charge of 1C. The electrostatic force experienced by the charge at the centre will be :

A charge Q is kept at the centre of a conducting sphere of inner radius R_(1) and outer radius R_(2) . A point charge q is kept at a distance r(gt R_(2)) from the centre. If q experiences an electrostatic force 10 N then assuming that no other charges are present, electrostatic force experienced by Q will be :

A charge Q is kept at the centre of a conducting sphere of inner radius R_(1) and outer radius R_(2) . A point charge q is kept at a distance r(gt R_(2)) from the centre. If q experiences an electrostatic force 10 N then assuming that no other charges are present, electrostatic force experienced by Q will be :

ABCD is a square of side 0.2 m. Charges of 2xx10^-9, 4xx10^-9, 8 xx 10^-9 coulomb are placed at the corners. A,B and C respectively. Calculate the work required to transfer a charge of 2xx10^-9 coulomb from corner D to the centre of the square.

A hollow insulated conducting sphere of radius 2m, is given a charge of 5 muC . What will be the electric field at the centre of the sphere?