Reduction in core losses and increase in permeability are obtained with transformer employing________?
Acore built-up of laminations of hot rolled sheet
Beither of the above
Ccore built-up of laminations of cold rolled grain oriented steel
Dnone of the above
Correct answer
C. core built-up of laminations of cold rolled grain oriented steel
Explanation
The correct answer is core built-up of laminations of cold rolled grain oriented steel.