CET Karnataka Medical CET - Karnataka Medical Solved Paper-2014

  • question_answer
     A multimeter reads a voltage of a certain A.C. source as 100 V. What is the peak value of voltage of A.C. source?

    A)  \[141.4V\]      

    B)  \[200V\]

    C)  \[400V\]

    D)  \[100V\]

    Correct Answer: A

    Solution :

    : The multimeter reads the rms value of A.C. source. \[\therefore \] \[{{V}_{rms}}=100V\] The peak voltage of the source is \[{{V}_{0}}=\sqrt{2}{{V}_{rms}}=\sqrt{2}\times 100V=141.4V\]


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