684Electrical EngineeringMediumThe thickness of laminations used in a transformer is usually________?A25 mm to 40 mmB4 mm to 5 mmC0.4 mm to 0.5 mmD14 mm to 15 mm Correct answerC. 0.4 mm to 0.5 mm ExplanationThe correct answer is 0.4 mm to 0.5 mm.