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  1. The best material for the core of a transformer is

  2. A.

     Stainless steel

    B.

     Mild steel

    C.

     Hard steel

    D.

     Soft iron

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    Answer : Option D

    Explanation :

    Soft iron provides the best material for the core of a transformer as its permeability (μ) is very high. Its hysteresis curve is of small area and its coercivity is very low.


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