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MGIMS WARDHA MGIMS WARDHA Solved Paper-2005

  • question_answer
    A spherical drop of mercury having a potential   of 2.5 V is obtained as a result of merging 125 droplets. The potential of a constituent droplets would be:

    A) 1.0 V                                     

    B)  0.5 V          

    C) 0.2 V                                     

    D) 0.1 V          

    Correct Answer: D

    Solution :

    Potential of big drop \[V={{n}^{2/3}}V'\] \[V'=\]potential of small drop \[n=\]no. of drops =125 \[V=2.5\] \[\therefore \]  \[2.5={{(125)}^{2/3}}V'\]                 \[2.5=25V'\]                 \[V'=\text{ }0.1\text{ }volt\]


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