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In the LCR circuit shown in figure unknown resistance and alternating voltage source are connected.
When switch ' \( \mathrm{S} \) ' is closed then there is a phase difference of \( \frac{\pi}{4} \) between current and applied voltage and voltage accross resister is \( \frac{100}{\sqrt{2}} \mathrm{~V} \). When switch is open current and applied voltage are in same phase. Neglecting resistance of connecting wire answer the following questions :
_ Average power consumption in the circuit when ' \( S \) ' is open :
(A) \( 2500 \mathrm{~W} \)
(B) \( 3000 \mathrm{~W} \)
(C) \( 5000 \mathrm{~W} \)
(D) \( 1250 \mathrm{~W} \)
W.
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