Power in ac circuits - class-XII

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Question 1 of 25

An electrical device draws 2 kW power from ac mains voltage 223 V(rms). The current differs lags in phase by $\phi = tan^{-1} \left ( -\frac{3}{4} \right )$ as compared to voltage. The resistance R in the circuit is:

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15 $\Omega$

20 $\Omega$

25 $\Omega$

30 $\Omega$

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