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NEET2023PhysicsAlternating CurrentActual

An ac source is connected to a capacitor C . Due to decrease in its operating frequency:

Options

  1. Acapacitive reactance remains constant
  2. Bcapacitive reactance decreases
  3. Cdisplacement current increases
  4. Ddisplacement current decreases

Correct answer

D. displacement current decreases

Step-by-step solution

Capacitive reactance is given by, X C = 1 ω C ⇒ X C ∝ 1 ω Clearly, as ω decreases the value of the X C will increase. Now, as impedance of the circuit is decreasing and as we know, conduction current will be equal to the displacement current, hence displacement current will decrease.

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