A charged particle having a charge of `-3muC` is placed close to a sheet of charge having a surface charge density `5xx10^-6 Cm^-2`. Find the force of attraction between the particle and the sheet of charge.

Find the Electric field due to two infinite plane parallel sheet of charge.

A particle of mass 9xx10^-5 g is kept over a large horizontal sheet of charge having surface charge density 5x10^-5 C m^-2 What charge should be given to this particle so that if released, it does not fall down?

A uniformly charged conducting sphere of 2.8 m in diameter has a surface charge density of 100muCm^-2 . Find the charge on the sphere.

A uniformly charged conducting sphere of 2.4 m diameter has a surface charge density of 80.0 muC//m^2 - Find the charge on the sphere.

A uniformly charged conducting sphere of 2.5 m in diameter has a surface charge density of 100 muC/m^2 . Calculate the charge on the sphere.

An electric dipole AB consists of charge +-5 separated by a distance of 2xx10^-3m The dipole is placed near a long line charge having linear charge density 4.5 xx 10^-4C m^-1 , such that the negative charge is at a distance OA = 2.5 cm from the line charge. Find the force acting on the dipole.

A uniformly charged conducting sphere of 2.4 m diameter has a surface charge density of 80.0 muC//m^2 - What is the total electric flux leaving the surface of the sphere?