Two concentric shells have radii R and `2R` charges `q_A` and `q_B` and potentials `2V` and `(3/2)V` respectively. Now, shell B is earthed and let charges on them become `q_A'` and `q_B'`. Then,

Two concentric conducting shells A and B are of radii R and 2R . A charge + q is placed at the centre of the shells. Shell B is earthed and a charge q is given to shell A. Find the charge on outer surface of A and B.

Two concentric conducting shells A and B are of radii R and 2R . A charge + q is placed at the centre of the shells. Shell B is earthed and a charge q is given to shell A. Find the charge on outer surface of A and B.

Two concentric conducting shells of radii R and 2R are having charges Q and -2Q respectively.In a region r

Two conducting hollow spherical shells of radius R and 2R carry charges -Q and 3Q respectively. How much charge will flow into the earth if inner shell is grounded?

Two conducting hollow spherical shells of radius R and 2R carry charges -Q and 3Q respectively. How much charge will flow into the earth if inner shell is grounded?

Two conducting hollow spherical shells of radius R and 2R carry charges -Q and 3Q respectively. How much charge will flow into the earth if inner shell is grounded?

Two isolated, concentric, conducting spherical shells have radii R and 2R and uniform charges q and 2q respectively. If V_1 and V_2 are potentials at points located at distances 3R and R/2 , respectively, from the centre of shells. Then the ratio of (V_2/V_1) will be

Two isolated concentric conducting spherical shells have radii R and 2R and uniform charges q and 2q respectively.If V_(1) and V_(2) are potentials at points located at distances 3R and (R)/(2) respectively from the centre of shells.Then the ratio of ((V_(2))/(V_(1))) will be

Three concentric conducting spherical shells have radii r, 2r, and 3r and charges q_1,q_2 and q_3 , respectively. Innermost and outermost shells are earthed as shown in figure. The charges shown are after earthing. Select the correct alternative.