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Discussion :: Measurements and Instrumentation

  1. Consider the following statements about a moving iron instrument

    1. It is an unpolarised instrument.
    2. It has permanent magnet.
    3. It has a fixed coil.
    4. It has two iron vanes.
    Of these statements

    2. A.
    1, 2, 3 are correct
    B.
    1, 2, 4 are correct
    C.
    1, 3 and 4 are correct
    D.
    2, 3, 4 are correct

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    Answer : Option C

    Explanation :

    It does not have a permanent magnet.

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