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Two small identical conducting balls A a...

Two small identical conducting balls A and B of charges `+10 mu C` and `+30 mu C` respectively, are kept at a separation of 50 cm. these balls have been connected by a wire for a short time
The final charge on each of the balls A and B and force of interaction will be

A

`28.8N`

B

`32.6N`

C

`14.4N`

D

`72N`

Text Solution

Verified by Experts

The correct Answer is:
C
Charge on each ball is `(10+30)/(2)=20 mu C`
`F=9xx10^(6)xx((20 xx10^(-6))^(2))/((0.50)^(2))=14.4N`.
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