A small conducting spherical shell withinner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radiusd. The inner shell has total charge +2q and the outer shellhas charge +4q.
a) calculate the electric field (magnitude and direction) in termsof q and the distance r from the common center of the 2 shells fo: r>d.
b) what is the total charge on the i) inner surface of the smallshell; ii) outer surface of the small shell; iii) inner surface ofthe large shell; iv) outer surface of the large shell.