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कृपया अपनी पसंदीदा भाषा चुनें
एक विभाजित धारा वोल्टेज $V=20 \sin 200 \pi t$ एक श्रेणी LCR परिपथ में लगाया जाता है जो धारा
$I=10 \sin \left(200 \pi t+\frac{\pi}{3}\right)$ को चलाता है। औसत शक्ति खर्च है:
(1) $21.6 W$
(2) $200 W$
(3) $173.2 W$
(4) $50 W$
$\langle P \rangle=IV \cos \phi$
$=\frac{20}{\sqrt{2}} \times \frac{10}{\sqrt{2}} \times \cos 60^{\circ}$
$=50\ \text{W}$
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