12th Class Physics Alternating Current / प्रत्यावर्ती धारा Question Bank MCQs - Alternating Current

  • question_answer
    When frequency of applied alternating voltage very high then                                        

    A) A capacitor will tend to become SHORT

    B) An inductor will tend to become SHORT         

    C) Both [a] and [b]                                   

    D) No one will become short                  

    Correct Answer: A

    Solution :

    Option [a] is correct Explanation: \[{{\operatorname{X}}_{c}}=1/2\pi fC\] So, as f increases, \[{{\operatorname{X}}_{c}}\] becomes smaller. For very high value of f,\[{{\operatorname{X}}_{c}}\] will be too small which may be considered as SHORT.


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