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Question B.20: The total real power delivered from the source to the load i...

The total real power delivered from the source to the load is most nearly

a. 1496 W      b. 580 W      c. 1742 W     d. 2904 W     e. 850 W

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The total power P delivered to the balanced load is:

P=3 V_{A B} I_{A B} \cos \theta=3 \times 220 \times 4.4 \times 0.6=1742.4 \approx 1742 \mathrm{~W}

The answer is \mathrm{c}.

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