A spherical metal shell A of radius `R_A` and a solid metal sphere B of radius `R_B(ltR_A)` are kept far apart and each is given charge `'+Q'`. Now they are connected by a thin metal wire. Then

Options

A. Inside shell A at every point electric field is zero:
B. After connections `Q_(A) gt Q_(B)`
C. After connections `(sigma_(A))/(sigma_(B)) = (R_(B))/(R_(A))`
D. After connections electric field strength on surface of A is less than that on the surface of B.