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  3. J & K CET Medical

J & K CET Medical J & K - CET Medical Solved Paper-2005

  • question_answer
    If the capacity of a condenser is 1 F, then its resistance in a DC circuit will be :

    A)  zero                                     

    B)  infinity

    C) \[1\Omega \]                                    

    D)  \[\frac{1}{2}\Omega \]

    Correct Answer: B

    Solution :

                     Capacitive reactance\[({{X}_{C}})\]is given by \[{{X}_{C}}=\frac{1}{\omega C}\] where\[\omega \]is angular frequency and C the capacitance. Also,\[\omega =2\pi f,\]where\[f\]is frequency. In a DC circuit \[f=0,\]     \[\therefore \] \[\omega =0\]                 \[{{X}_{C}}=\frac{1}{0}=\infty \]


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