Capacitive reactance of a capacitor in an A C circuit is 3   kΩ . If this capacitor is connected…

Capacitive reactance of a capacitor in an AC circuit is 3 kΩ. If this capacitor is connected to a new AC source of double frequency, the capacitive reactance will become
  1. 1.5 kΩ
  2. 3 kΩ
  3. 6 kΩ
  4. 5.2 kΩ

Solution

Capacitive reactance is given by, Xc=12πfC.

Clearly, if the frequency of the AC source is doubled then capacitive reactance will be halved, which is  1.5 kΩ.

Asked in: AP EAMCET 2022 (04 Jul Shift 2)

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