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12th Class Physics Electrostatics & Capacitance Question Bank MCQ - Electrostatic Potential and Capacitance

  • question_answer
    If n number of capacitors are connected in series and then in parallel, then their ratio of capacitance is:

    A) 1 : 1                             

    B) \[1:{{n}^{2}}\]

    C) \[{{n}^{2}}:1\]                  

    D) None of these

    Correct Answer: B

    Solution :

    (b) \[1:{{n}^{2}}\] When n capacitors are connected in series, \[C{{ & }_{series}}=\frac{C}{n}\] When n capacitors are connected in parallel, \[{{C}_{parallel}}=nC\] \[\frac{{{C}_{series}}}{{{C}_{parallel}}}=\frac{C/n}{nC}=\frac{1}{{{n}^{2}}}\]


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