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NEET Sample Paper NEET Sample Test Paper-40

  • question_answer
    A capacitor of capacity\[{{C}_{1}}\] is charged up to V volt and then connected to an uncharged capacitor of capacity\[{{C}_{2}}.\]Then final potential difference across each will be

    A) \[\frac{{{C}_{2}}V}{{{C}_{1}}+{{C}_{2}}}\]

    B) \[\left( 1+\frac{{{C}_{2}}}{{{C}_{1}}} \right)V\]

    C) \[\frac{{{C}_{1}}V}{{{C}_{1}}+{{C}_{2}}}\]

    D) \[\left( 1-\frac{{{C}_{2}}}{{{C}_{1}}} \right)V\]

    Correct Answer: C

    Solution :

     Common potential \[V'=\frac{{{C}_{1}}V+{{C}_{2}}\times 0}{{{C}_{1}}+{{C}_{2}}}=\frac{{{C}_{1}}}{{{C}_{1}}+{{C}_{2}}}.V\]


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