Determine the inductive reactance when a 30.0mH inductor with a negligible resistance is connected to...
PHYSICS
JAMB 1993
Determine the inductive reactance when a 30.0mH inductor with a negligible resistance is connected to a 1.3 x 103Hz oscillator.
- A. 39.0Ω
- B. 122.5Ω
- C. 245.0Ω
- D. 39000.0Ω
Correct Answer: C. 245.0Ω
Explanation
XL = 2\(\pi\)FL
= 2 x 3.142 x 30 x 10-3 x 1.3 x 103
= 245\(\Omega\)
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