Consider a spherical thin shell of radius R with charges uniformly distributed on its surface. The uniform surface charge density is denoted as o. (a) Setting the potential V to be zero at infinity, find the electric potential created by the charged shell by directly using 1 dq V 4T€0 . (1) (b) Using V, find the electric field E created by the shell. (c) Find the energy W stored in this system.

Consider a spherical thin shell of radius R with charges uniformly distributed on its surface. The uniform surface charge density is denoted as o. (a) Setting the potential V to be zero at infinity, find the electric potential created by the charged shell by directly using 1 dq V 4T€0 . (1) (b) Using V, find the electric field E created by the shell. (c) Find the energy W stored in this system.