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MHT CET20228 Aug 2022Evening ShiftPhysicsAlternating CurrentActual

The frequency for which a 5 F capacitor has a reactance of 1 1000 is given by

Options

  1. A1 1000 ~Hz
  2. B1000 ~Hz
  3. C100 MHz
  4. D1000 Hz

Correct answer

C. 100 MHz

Step-by-step solution

Concept: reactance of capacitor is X_c= 1 c = 1 2 f C Given X_c=10⁻³ , C=5 10⁻⁶ ~F aligned & 10⁻³ = 1 2 f (5 10⁻⁶ ) & f = 1 10 10⁻⁹ ~Hz = 10^8 Hz = 100 MHz aligned

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