A transformer having an efficiency of 90 % is working on 200 V , 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

Question

A transformer having an efficiency of 90 % is working on 200 V , 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, 300 V , 15 A, 450 V , 15 A, 450 V , 13.5 A, 600 V , 15 A

MARKS App · Accepted Answer

Power output = 3 kW × 90 100 = 2 . 7 kW I s = 6 A ∴ V s = 2.7 kW 6 A = 450 V ⇒ I p = 3 kW 200 V = 15 A

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