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JEE Main 2021 (31 Aug, Shift 1) · Series LCR Circuit

Series LCR Circuit question from JEE Main 2021 (31 Aug, Shift 1)

Q49JEE Main 2021 · 31 AUG · SHIFT 1Easy

Series LCR Circuit

In an ac circuit, an inductor, a capacitor and a resistor are connected in series with XL = R = XC. Impedance of this circuit is:

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Answer: (c)

  1. Z=R2+(XL−XC)2Z = \sqrt{R^2 + (X_L - X_C)^2}
  2. XL=XC⇒Z=RX_L = X_C \Rightarrow Z = R
  3. So the answer is (c) RR.
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