The set builder form of " A is the set of the whole numbers which are divisible by 5 and are less than 7" is
Two concentric shells A and B of radii a and b are given charged qA and AB. (a) Find the potential difference between the shells. (b) What happens when they are connected by means of a conducting wire.
Three conducting spherical shells have radii a, b, and c such that a < b< c (Fig. 3.113). Initially, the inner shell is uncharged,the middle shell has a positive charge Q, and the outer shell has a negative charge -Q.
a. Find the electric potential of the three shells.
b. If the inner and outer shells are now connected by a wire that is insulated as it passes through the middle shell, what is the electric potential of each of the three shells? Also, what is the final charge on each shell?