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Discussion :: Measurements and Instrumentation

  1. Which of the following instruments can be used for dc as well ac upto a few MHz?

    1. Moving iron instrument
    2. Thermocouple instrument
    3. Induction instrument
    4. Moving coil instrument
    Select the correct answer as per following codes

    2. A.
    2 only
    B.
    2 and 3 only
    C.
    1, 2 and 3 only
    D.
    2 and 4 only

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    Answer : Option A

    Explanation :

    Thermocouple instrument is based on heating effect and can be used for very high frequencies also.

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