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An RLC series circuit has a resistance R of 20Ω and a current which lags behind the applied voltage by 45°. If the voltage across the inductor is twice the voltage across the capacitor, the value of inductive resistance is ____________

An RLC series circuit has a resistance R of 20Ω and a current which lags behind the applied voltage by 45°. If the voltage across the inductor is twice the voltage across the capacitor, the value of inductive resistance is ____________ Correct Answer 40 Ω

Z = 20 + j20 V = VR = j (VL – VC) Given, VL = 2 VC Or, ZL = 2 ZC Or, ZL – ZC = 20 Or, 2 ZC – ZC = 20 Or, ZC = 20 Ω Or, ZL = 2ZC = 40 Ω.

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