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27 identical drops are charged at 22V each. They combine to form a bigger drop. The potential of the bigger drop will be…………V.

0 3 Views | Posted 2 months ago
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    Answered by

    alok kumar singh | Contributor-Level 10

    2 months ago

    Volume of 27 identical drops = volume of a bigger drop

    ⇒ 2 7 × 4 3 π r 3 = 4 3 π R 3              

    R3 = 27r3

    R = 3r

    Given potential of a small drop = 22v

    V b i g g e r = k ( 2 7 q ) R = 2 7 k     q 3 r = 9 k q r = 9 × 2 2 = 1 9 8     v o l t

                   

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