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

  • question_answer
                                            A \[20\,\mu F\] and a \[10\,\mu F\]capacitor are connected in parallel and a potential difference is applied across the combination. The \[20\,\mu F\] capacitor has:

    A) half the charge of the\[1\,\,\mu F\]capacitor                    

    B) twice the charge of the \[1\,\,\mu F\]capacitor

    C) twice the potential difference of the \[1\,\,\mu F\]capacitor

    D) half the potential difference of the \[1\,\,\mu F\]capacitor

    Correct Answer: B

    Solution :

    (b) twice the charge of the \[1\,\,\mu F\]capacitor                  \[{{q}_{1}}:{{q}_{2}}={{C}_{1}}:{{C}_{2}}\] \[{{q}_{1}}:{{q}_{2}}=2:1\] \[{{q}_{1}}=2{{q}_{2}}\] Thus, \[20\,\mu F\]capacitor has twice the charge of \[10\,\mu F\]capacitor.


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