हिंदी

A step down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44 W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit? -

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प्रश्न

A step down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44 W lamp. Ignoring power losses in the transformer, what is the current in the primary circuit?

विकल्प

  • 2A

  • 4A

  • 0.2A

  • 0.4 A

MCQ

उत्तर

0.2A

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