MCQ
If the frequency of an A.C is made 4 times of its initial value, the inductive reactance will.
  • A
    be 4 times
  • B
    be 2 times
  • C
    be half
  • D
    remain the same

Answer

  1. be 4 times

Explanation:

inductive reactance $=2\pi\text{fL}$

therefore when f is made 4 times, inductive reactance also becomes 4 times

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