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Silicon steel is chosen for core construction in electrical machines because it offers:

AHigh electrical conductivity
BHigh mechanical copper strength
CLow resistance to eddy currents
DLow hysteresis loss and high magnetic permeability

Explanation

Adding silicon (3% to 4.5%) to steel increases resistivity and decreases the hysteresis loop area, reducing hysteresis and eddy losses.

Submitted by: mcqstutor Team More Electrical Engineering MCQs →

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