Measure the power by the two wattmeter method, Physics

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Three similar coils, each having a resistance of 8 and an inductive reactance of 8 are connected

(a) in star and

(b) in delta, across a 415V, 3-phase supply.

Measure for every connection the readings on each of two wattmeters connected to measure the power by the two-wattmeter method.

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