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Answer :

The core used in high frequency transformer is usually air core .

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Description : 46 The core used in high frequency transformer is usually A. Copper core B. Cost iron core C. Air core D.Mid steel core

Answer : C. Air core

Answer : Material used for construction of transformer core is usually silicon steel.

Description : Material used for construction of transformer core is usually A. 0.4mm to 0.5 mm B. 4mm to 5 mm C. 14mm to 15 mm D. 25mm to 40 mm

Answer : d) 25mm to 40mm

Description : Material used for construction of transformer core is usually A. 0.4mm to 0.5 mm B. 4mm to 5 mm C. 14mm to 15 mm D. 25mm to 40 mm

Answer : The thickness of laminations used in a transformer is usually 0.4 mm to 0.5 mm.