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Question 20193
JEE Physics · Easy

Electromagnetic Induction and Alternating Current: Inductive Reactance MCQ

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Inductive ReactanceEasyQuestion 20193

Question

Inductive reactance X_L for inductor L at frequency f is:
  1. A
    2πfL
    Correct
  2. B
    1/(2πfL)
  3. C
    L/(2πf)
  4. D
    f/(2πL)

Correct answer

2πfL

Explanation

X_L = ωL = 2πfL. X_L increases with frequency — an inductor opposes changing current more strongly at higher frequencies.

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