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AP EAMCET20224 Jul 2022Evening ShiftPhysicsAlternating CurrentActual

Capacitive reactance of a capacitor in an A C circuit is 3 kΩ . If this capacitor is connected to a new A C source of double frequency, the capacitive reactance will become

Options

  1. A1 . 5   kΩ
  2. B3   kΩ
  3. C6   kΩ
  4. D5 . 2   kΩ

Correct answer

A. 1 . 5   kΩ

Step-by-step solution

Capacitive reactance is given by, X c = 1 2 π f C . Clearly, if the frequency of the AC source is doubled then capacitive reactance will be halved, which is 1 . 5   kΩ .

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