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MHT CET Physics question

PhysicsAlternating CurrentMHT CET

A transformer having efficiency of 90% is working on 200 V and 3 kW power supply. If the current in the secondary coil is 6 A, the voltage across the secondary coil and the current in the primary coil respectively are

Answer: (B)

Solution

Input power 3000 W gives A; output power W so

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Question ID VK-082195