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GATE EE 2024 Set 1 — Question 50

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NAT+2 / -0HardTwo-Wattmeter MethodAC Power & Three-PhaseElectric CircuitsUnbalanced Circuits

Electric Circuits → AC Power & Three-Phase → Two-Wattmeter Method

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Question

In the circuit shown, Z1=50∠−90∘ΩZ_1 = 50\angle - 90^\circ \Omega and Z2=200∠−30∘ΩZ_2 = 200\angle - 30^\circ \Omega. It is supplied by a three phase 400 V400 \text{ V} source with the phase sequence being R-Y-B. Assume the watt meters W1W_1 and W2W_2 to be ideal. The magnitude of the difference between the readings of W1W_1 and W2W_2 in watts is ___________ (rounded off to 2 decimal places).

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