12th Class Physics Alternating Current / प्रत्यावर्ती धारा

  • question_answer 21)
    Obtain the resonant frequency and Q-factor of a series LCR circuit with , and . It is desired to improve the sharpness of the resonance of the circuit by reducing its 'full width at half maximum' by a factor of 2. Suggest a suitable way.  

    Answer:

                                                                            = 45                 For doubling Q for same should be reduced to half i.e..      


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