Questions
Consider two concentric spherical metal shells of radii and r2(r2 > r1). If the outer shell has a charge q and the inner one is grounded, the charge on the inner shell is :
detailed solution
Correct option is C
Let the charge on the inner shell be q'.The total potential will be zero.So, kq'r1+kqr2=0 (∵r2>r1) ⇒ q'=-Kq/r2K/r1⇒q'=-r1r2qTalk to our academic expert!
Similar Questions
Two spherical shells are as shown in figure.
Let r be the distance of a point from their common centre. Then, match the following columns and mark the correct choice from the given codes.
| Column-I | Column-II | ||
| i. | Electric field for r < R1 | p. | is constant for q2 and vary for q1 |
| ii. | Electric potential for r < R1 | q. | is zero for q2 and vary for q1 |
| iii. | Electric potential for R1 < r <R2 | r. | is constant |
| iv. | Electric field for R1 < r <R2 | s. | is zero |
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