In transformers using hot rolled steel, the cross-section of the yoke is made about __________ greater than that of the core?
(A) 5 percent
(B) 10 percent
(C) 15 percent
(D) 30 percent
(E) none of the above
In transformers using hot rolled steel, the cross-section of the yoke is made about __________ greater than that of the core?
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