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MHT CET 2023 (10 May, Shift 1) · Pure R, L and C Circuits

Pure R, L and C Circuits question from MHT CET 2023 (10 May, Shift 1)

Q34MHT CET 2023 · 10 MAY · SHIFT 1Easy

Pure R, L and C Circuits

The inductive reactance of a coil is 'XLX_L'. If the inductance of a coil is tripled and frequency of a.c. supply is doubled, then the new inductive reactance will be

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Answer: (d)

  1. XL=2πfL∝fLX_L = 2\pi fL \propto fL
  2. XL′=2π(2f)(3L)=6XLX_L' = 2\pi(2f)(3L) = 6X_L
  3. So the answer is (d) 6XL6X_L.
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