What is surface charge density?

A spherical conducting 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. What is the surface charge density on the inner and outer surfaces of the shell ?

Use Gauss' theorem to find the electric field due to a uniformly charged infinitely large plane thin sheet with surface charge density sigma .

A positivley charged infinite plane sheet has surface charge density alphac/m^2 . A metalic ball of mass m and charge Q is suspended by an insulated thread from the sheet. What will be the angle with the verticle sheet at the equilibrium condition? What quanity is dipole? Either scalar or vector?

A hollow charged conductor has a tiny hole cut into its surface. Show that the electric field in the hole is (sigma//2epsilon_0)overset^n ,where overset^n is the unit vector in the outward normal direction, and sigma is the surface charge density near the hole.

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

Statement I: The force with which one plate of a parallel plate capacitor is attracted towards the other plate is equal to square of surface charge density per in per unit area. Statement II: Total amount of charge resides on unit surface area is known as surface charge density.

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

Two equal drops of water with the same and similar charge coalesce to form a large single drop. Show how the surface charge density, capacity, potential and energy change.

Two infinite parallel sheets A and B have surface charge density +sigma are held as shown below. Graphically represent the variation of electric field due to the two sheets as one moves from the point O to P