Physics

Physics

Problem

A series LCR circuit with a resistance of 1005 Ω100\sqrt{5}\ \Omega is connected to an ac source of 200 V. When the capacitor is removed from the circuit, current lags behind emf by 45∘45^\circ. When the inductor is removed from the circuit keeping the capacitor and resistor in the circuit, current leads by an angle of tan⁡−1(12)\tan^{-1}\left(\frac{1}{2}\right). Calculate the current and power dissipated in LCR circuit.

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