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प्रश्न
A transformer converts 240 V AC to 60 V AC. The secondary has 75 turns. The number of turns in primary are _______.
(A) 600
(B) 500
(C) 400
(D) 300
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उत्तर
∴ `N_p` = 300
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संबंधित प्रश्न
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