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MHT CET202014 Oct 2020Evening ShiftPhysicsAlternating CurrentActual

In a capactive circuit, the reactance of capacitor at frequency 'f' is ' X _ c ^ . What will be its reactance at frequency 4 f ?

Options

  1. AX _ C 2
  2. BX_ C 4
  3. CX _ C 8
  4. DX_ C

Correct answer

B. X_ C 4

Step-by-step solution

Capacitive reactance X _ c = 1 2 fC array l X _ C ^ X _ c = f f ^ = 1 4 X _ c ^ = X _ c 4 array

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