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MHT CET 2024 (9 May, Shift 2) · Series LCR Circuit

Series LCR Circuit question from MHT CET 2024 (9 May, Shift 2)

Q23MHT CET 2024 · 9 MAY · SHIFT 2Easy

Series LCR Circuit

When a capacitor is connected in series LR circuit, the alternating current flowing in the circuit

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Answer: (c)

  1. LR: Z=R2+XL2Z = \sqrt{R^2 + X_L^2}. With CC: Z′=R2+(XL−XC)2Z' = \sqrt{R^2 + (X_L - X_C)^2}.
  2. XCX_C partly cancels XLX_L, so Z′<ZZ' < Z (for XC<2XLX_C < 2X_L, the usual case).
  3. Smaller impedance, larger current: answer (c) increases.
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