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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    If resonant frequency is \[f\]and capacity become 4 times, then resonant frequency will be

    A)  \[f/2\]            

    B)  \[2f\]

    C)  \[f\]               

    D)  \[f/4\]

    Correct Answer: A

    Solution :

     Frequency, \[f=\frac{1}{2\pi \sqrt{LC}}\] When capacitance\[=4C,\]then \[f'=\frac{1}{2\pi \sqrt{4LC}}=\frac{f}{2}\]


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