AP EAMCET202315 May 2023Morning ShiftPhysicsElectrostaticsActual
Two thin conducting concentric shells of radii R and 2 R are shown in the figure. The outer shell carries a charge +Q and the inner shell is neutral. Then the correct statement/s is (a) When the switch is closed, the potential on the inner shell becomes zero (b) With the switch closed, the charge on the inner sphere is Q 2
Options
- A(a) and (b) are correct
- B(a) is correct, (b) is wrong
- C(a) is wrong, (b) is correct
- D(a) and (b) are wrong
Correct answer
B. (a) is correct, (b) is wrong
Step-by-step solution
Let charge on inner shell after switch is closed be q then, V _ inner = V _ outer K q R + K(Q-q) 2 R = K q 2 R + K(Q-q) 2 R q =0