A capacitor (C) and resistor (R) are connected in series with an a.c. source of voltage of frequency 50 Hz. The potential difference across C and R are respectively 120 V, 90 V, and the current in the circuit is 3 A. Calculate (i) the impedance of the circuit (ii) the value of the inductance, which when connected in series with C and R will make the power factor of the circuit unity.
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The correct Answer is:
(i) `15 Omega`, (ii) 0.13 H
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