A step down transformer connected to an ac mains supply of 220 V is made to operate at 11…
Physics · JEE Main · NTA Exams — Electromagnetic Induction and Alternating Currents
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?
- 4A
- 0.2A
- 0.4A
- 2A
Answer
(B) 0.2A
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