Charge Densities

The electric field inside a spherical shell of uniform surface charge density is

An infinite line charge produces a field of 7.182 xx 10^(8) N//C at distance of 2 cm. the linear charge density is

An infinite line charge produces a field of 18xx10^(4) N/C at a distance of 2 metre from it. The linear charge density is

The plates of a parallel plate capacitor are not exactly parallel. The surface charge density is therefore,

Highest positive charge density is observed in which of the following underlined carbon atoms?

When a number of liquid drops each of surface charge density sigma and energy E combine, a large drop is formed. If the charge density of the large drop is 3 sigma , its energy is

Find the electric field at the centre of a uniformly charged semicircular ring of radius R. Linear charge density is lamda

A very long uniformly charged cylinder (radius R) has a surface charge density sigma . A very long uniformaly charged line charge( linear charge density lambda ) is placed along the ctlinder axis. If electric field intensity vector outside the cylinder is zerom then :

A segment of a charged wire of length l, charge density lambda_(2) and an infinitely long charged wire. Charge density lambda_(1) . Lie in a plate at right angles to each other. The separation between the wires is r_(0) . Determine the force of interction between the wires.

A hollow insulating spherical shell has a surfac charge distribution placed upon it, such that the upper hemisphere has a uniform surface charge density sigma . While the lower hemisphere has a uniform surface charge density -sigma .as shown in the figure. Their interface lies in x-y plane which