Q3 400 V (line to line) is applied to three star - connected identical impedances each consisting of a 4 ohms resistance in series with 3 ohm inductive reactance. Find (a) line current and (b) total power applied. Q4 Three coils, each of resistance 6 ohms and inductive reactance 8 ohms are joined in delta across 400-V, 3-phase lines. Calculate the line current and power absorbed.
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