At what frequency will a 50.0-mH inductor have a reactance XL = 700 Ω?
A)352 Hz
B)777 Hz
C)1.25 kHz
D)2.23 kHz
E)14 kHz

Question

Quizplus · Accepted Answer

Reactance of an inductor can be calculated using the formula:

XL = 2πfL

where XL is the reactance in ohms, f is the frequency in hertz, and L is the inductance in henries.

Substituting the given values, we get:

700 = 2πf(50.0 × 10^-3)

Solving for f, we get:

f = 700 / (2π × 50.0 × 10^-3)

f = 2230 Hz

Therefore, the answer is choice D (2.23 kHz).

At What Frequency Will a 50