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Discussion :: Network Analysis and Synthesis

  1. A current of 1 A in the coil of an iron cored electromagnet cause a flux density of 0.2.T. If the current is 2 A, B=

    2. A.
    0.2 T
    B.
    0.4 T
    C.
    0.4 T or less
    D.
    0.4 T or more

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    Answer : Option B

    Explanation :

    In air cored coil flux density increases linearly with current because there is no saturation.

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