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A charge Q1 is placed at O inside a holl...

A charge `Q_1` is placed at O inside a hollow conducting sphere having inner and outer radii as 10 m and 11 m as shown. The force experienced by `Q_2` at P is `F_1` and force experienced by `Q_2` when `Q_1` is placed at `O_1 is F_2`. Then `F_1//F_2` is equal to

A

1

B

`(12/13)^2`

C

`(13/12)^2`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Force on `Q_(2)` will be due to induced charge on outer surface only which will be same in both cases along with its distribution. Hence the ratio is `1`.
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