12th Class Physics Alternating Current / प्रत्यावर्ती धारा Question Bank Assertion And Reason (MCQs) - Alternating Current

  • question_answer
    Assertion (A): Vs value of an alternating voltage V = 4\[\sqrt{2}\] sin 314t is 4 volt.
    Reason (R): Peak value of the alternating voltage is 4\[\sqrt{2}\] volt.

    A) Both A and R are true and R is the correct explanation of A

    B) Both A and R are true but R is NOT the correct explanation of A

    C) A is true but R is false

    D) A is false and R is true

    Correct Answer: B

    Solution :

    Option [b] is correct.    
    Explanation: Given alternating voltage \[\operatorname{V}=4~\surd 2\sin 314\operatorname{t}\]
    Where peak value =\[{{\operatorname{V}}_{0}}=4\sqrt{2}\] volt
    \[{{\operatorname{V}}_{\operatorname{RMS}}}={{\operatorname{V}}_{0}}\]√2=4 volt.
    Hence both assertion and reason both are true. But the reason does not properly explain the assertion.


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