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NEET 2001 (AIPMT) · Pure R, L and C Circuits

Pure R, L and C Circuits question from NEET 2001 (AIPMT)

Q65NEET 2001 · AIPMTEasy

Pure R, L and C Circuits

A capacitor of capacity C has reactance X. If capacitance and frequency become double then reactance will be

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Answer: (c)

  1. X=12πfC∝1fCX = \frac{1}{2\pi f C} \propto \frac{1}{fC}
  2. C→2CC \to 2C and f→2ff \to 2f: X′=X4X' = \frac{X}{4}
  3. So the answer is (c) X/4.
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