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NEET Sample Paper NEET Sample Test Paper-31

  • question_answer
    A metal sphere A of radius a charged to potential V. What will be its potential if it is enclosed by a spherical conducting shell B of radius b and the two are connected by a wire

    A)  \[2V\]              

    B)  V

    C)  \[\frac{b}{a}\,V\]

    D)  \[\frac{a}{b}\,V\]

    Correct Answer: D

    Solution :

    \[V=\frac{KQ}{a}\] and when connected by wire charge of A will transfer to B so potential \[V'=\frac{KQ}{b}=\frac{a}{b}V\]


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