CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2000

  • question_answer
    A hot wire ammeter reads 10 amp. In an A.C. circuit. The peak value of the current will be:

    A) \[\frac{3}{\pi }\text{amp}\]                        

    B) \[\frac{10}{\sqrt{2}}\text{amp}\]

    C)  \[10\sqrt{2}\,\text{amp}\]                        

    D)  \[6\pi \,\text{amp}\]

    Correct Answer: C

    Solution :

    The reading of hot wire ammeter or rms value of current \[{{I}_{rms}}=10\,\text{amp}\] The peak value of the current is                                 \[{{I}_{0}}=\sqrt{2}\times {{I}_{rms}}\]                                 \[=\sqrt{2}\times 10=10\sqrt{2}\,\text{amp}\]


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