Question

Figures 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

• A. The charge $q$ will be there at outer surface A
• B. The charge $\frac{-bq}{c}$ will be there at inner surface of $C$
• C. The charge $-q$ will be at inner surface of B
• D. The charge $q(1-b/c)$ will be there at outer surface of C.

Answer 1

Answer: (A), (B)

The correct options are
A The charge $q$ will be there at outer surface A
B The charge $\frac{-bq}{c}$ will be there at inner surface of $C$