The number of electrons to be put on a spherical conductor of radius `0.1m` to produce an electric field of `0.036N//C` just above its surface is

The number of electrons to be put on a spherical conductor of radius 0.1 m to produce on electric field of 0.036 N/C just above its surface is

The number of electrons to be put on a spherical conductor of radius 0.1 m to produce on electric field of 0.036 N/C just above its surface is

The number of electrons to be put on a sphreical conductor of radius 0.1 m to produce an electric field of 0.036 N/C just above its surface is

The number of electrons to be put on a spherical conductor of radius 0.1 m to produed electric field of 0.36 N C^-1 just above the surface is

How many electrons be placed on a spherical conductor of radius 10cm so that they produce an electric field of 0.036 NC^-1 just above the surface of the conductor?