Determine two wattmeters method, Physics

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

(a) in star and

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

Calculate for every connection the readings on each of two wattmeters linked to measure the power by the two-wattmeter method

 


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