A spherical conductor of radius 12 cm has a charge of `1.6 xx 10^-7C` distributed uniformly on its surface. What is the electric field at a point 18 cm from the centre of the sphere?

A spherical conductor of radius 12 cm has a charge of 1.6 xx 10^-7C distributed uniformly on its surface. What is the electric field inside the sphere?

A spherical conductor of radius 12 cm has a charge of 1.6 xx 10^-7C distributed uniformly on its surface. What is the electric field just outside the sphere?

Can a metal sphere of radius 1 cm hold a charge of 1 C?

A spherical conduting shell of inner radius r_1 and outer radius r_2 has a charge Q. A charge q is placed at the centre of the shell. Write the expression for the electric field at a point x > r_2 from the centre of the spherical shell.

A small sphere carries a charge of 20muC. The energy density of electric field at a point 25 cm away from the centre of the sphere in air is

A long straight solid conductor of radius 5 cm carries a current of 2A, which is uniformly distributed over its circular cross section. Find the magnetic field at a distance of 3 cm from the axis of the conductor.

A hemisphere is uniformly charge positively. The electric field at a point on the diameter away from the centre is directed.

Two charges of +25 xx 10^-9 coulomb and -25 xx 10^-9 coulomb are placed 6 m apart. Find the electric field at a point 4 m from the centre of the electric dipole on axial line

Two charges of +25 xx 10^-9 coulomb and -25 xx 10^-9 coulomb are placed 6 m apart. Find the electric field at a point 4 m from the centre of the electric dipole on equitorial line.

The electric field at a distance 3R/2 from the centre of a charge conducting spherical shell of radius R is E. The electric field at a distance R/2 from the centre of the sphere is