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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    An LC circuit is in the state of resonance. If \[C=0.1\,\pi F\] and \[L=0.25\,H,\] neglecting ohmic resistance of circuit, what is the frequency of

    A)  1007 Hz                               

    B)         100 Hz                 

    C)         109 Hz                                 

    D)         500 Hz

    Correct Answer: A

    Solution :

    From the formula, the frequency of oscillation is                 \[f=\frac{1}{2\pi \sqrt{LC}}\]                 \[=\frac{1}{2\pi \sqrt{0.25\times 0.1\times {{10}^{-6}}}}\]                                 \[=1007\,\,Hz\]


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