The potential on the `Nth` shell due to `N` concentric shells having charges `Q`, `2Q`, `3Q`,……`NQ` and radii `a`, `2a`, `3a`…..`Na` respectively is

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

(Figure 3.78) shows three thin concentric spherical shells A, B and C with initial charges on A , B, and C as 3 Q, 2Q, and -Q, respectively. The shells A amd C are connected by a wire such that it does not touch B. Shell B is earthed. Determine the final charges q_A, q_B, "and" q_C . .

(Figure 3.78) shows three thin concentric spherical shells A, B and C with initial charges on A , B, and C as 3 Q, 2Q, and -Q, respectively. The shells A amd C are connected by a wire such that it does not touch B. Shell B is earthed. Determine the final charges q_A, q_B, "and" q_C . .

Figure shows a system of three concentric metal shells, A, B and C with radii a, 2a and 3a respectively. Shell B is earthed and shell C is given a charge Q. Now if shell C is connected to shell A, then find the final charge on the shell B

Figure shows a system of three concentric metal shells, A, B and C with radii a, 2a and 3a respectively. Shell B is earthed and shell C is given a charge Q. Now if shell C is connected to shell A, then find the final charge on the shell B

Figure shows three concentric thin spherical shells A, B and C of radii a, b, and c. The shells A and C are given charge q and -q, respectively, and shell B is earthed. Then,

Three concentric spherical conducting shells A, B and C of radii a, 2a and 4a are initially given charges +Q, -2Q and +Q respectively. The charge on the middle spherical shell B after switches S_(1) and S_(2) are simultaneously closed, will be

Three concentric spherical conducting shells A, B and C of radii a, 2a and 4a are initially given charges +Q, -2Q and +Q respectively. The charge on the middle spherical shell B after switches S_(1) and S_(2) are simultaneously closed, will be

There are four concentric shells A, B, C and D of radii a, 2a, 3a and 4a respectively. Shells B and D are given charges +q and -q respectively. Shell C is now earthed. The potential difference V_A-V_C is

There are two concentric spherical shells with inner shell having positive charge q and outer shell having a charge -q. Now outer shell is supplied a charge -2q and inner shell is earthed, Calculate the ratio of initial and final capacities of the system. (If a = 3R, b= 5R)