A 2H inductor has negligible resistance and is connected to a 50/π Hz A.C. Supply….

Physics JAMB 2000

A 2H inductor has negligible resistance and is connected to a 50/π Hz A.C. Supply. The reactance of the inductor is

  • 200 Ω checkmark
  • 50 Ω
  • 100/π Ω
  • 25/π Ω

The correct answer is: A

Explanation

Inductive reactance is given by
XL = WL = 2πfL
XL = 2 x π x (50/π) x 2
XL = 200Ω

There is an explanation video available .

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