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  • Twenty seven drops of water of the same size are equally and similarly changed. They are then united to form a bigger drop. By what factor will the electrical potential changes.-<div class='qna

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

Option: 1

9 times


Option: 2

27 times


Option: 3

6 times


Option: 4

3 times


Answers (1)

best_answer

Let \mathrm{V_{B}} is the potential of bigger drop and \mathrm{V_{s}} potential of small drop.

use, \mathrm{V_{B}=n^{2 / 3} V_{s}\quad -(1)}

but , \mathrm{n=27}. put ins (1) we get.
\mathrm{ V_{B}=(27)^{2 / 3} V_{s}}
\mathrm{V_{B}=\left(3^{3}\right)^{2 / 3} V_{S}=3^{2} V_{s}}

\mathrm{V_{B}=9 V_{S} \rightarrow 9} times. Ans

Posted by

rishi.raj

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