There are two concentric conducting shells. The potential of outer shell is 10 V and that of inner shell is 15 V. If the outer shell is grounded, the potential of inner shell is

Question

There are two concentric conducting shells. The potential of outer shell is 10 V and that of inner shell is 15 V. If the outer shell is grounded, the potential of inner shell is (A) 25 V (B) 15 V (C) 10 V (D) 5 V

Tardigrade Admin · Accepted Answer

Initial potential difference Δ V = 15 - 10 = 5 V When outer shell is earthed, potential difference remains unchanged. vi′ - 0 = 5 ⇒ vi′ = 5 V

Q. There are two concentric conducting shells. The potential of outer shell is 10 V and that of inner shell is 15 V. If the outer shell is grounded, the potential of inner shell is

25 V

15 V

10 V

5 V

Initial potential difference $Δ V = 15 - 10 = 5 V$
When outer shell is earthed, potential difference remains unchanged.
$v_{i}^{'} - 0 = 5 \Rightarrow v_{i}^{'}$ = 5 V

Q. There are two concentric conducting shells. The potential of outer shell is 10 V and that of inner shell is 15 V. If the outer shell is grounded, the potential of inner shell is

25 V

15 V

10 V

5 V

Initial potential difference ΔV=15−10=5V When outer shell is earthed, potential difference remains unchanged. vi′​−0=5⇒vi′​ = 5 V

Initial potential difference $Δ V = 15 - 10 = 5 V$
When outer shell is earthed, potential difference remains unchanged.
$v_{i}^{'} - 0 = 5 \Rightarrow v_{i}^{'}$ = 5 V