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Twenty seven drops of water of the same ...

Twenty seven drops of water of the same size are equally and similarly charged. They are then united to from a bigger drop. By what factor will the electrical potential changes.

A

9 times

B

27 times

C

6 times

D

3 times

Text Solution

Verified by Experts

The correct Answer is:
A

`V_("Big")=n^(2//3) v_("small") rArr V_("Big") =(27)^(2//3) v_("small") =9v_("small")`
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