At what frequency will a 20.0-mH inductor have an inductive reactance of 100 Ω?
A)225 Hz
B)655 Hz
C)796 Hz
D)457 Hz
E)None of the other answers is correct.

Question

Quizplus · Accepted Answer

The formula for inductive reactance is X_L = 2πfL, where X_L is the inductive reactance, f is the frequency, and L is the inductance.

Substituting the given values, we get:

100 Ω = 2πf(20.0 mH)

Solving for f, we get:

f = 100 Ω / (2π × 20.0 mH)

f = 796 Hz

Therefore, the answer is C.

At What Frequency Will a 20