What is the reactance of a $20 - \mathrm { mH }$ inductor at a frequency of $60 \mathrm {~Hz}$ ?
A) $1.2 \mathrm {~m} \Omega$
B) $7.5 \mathrm {~m} \Omega$
C) $7.5 \Omega$
D) $1.2 \Omega$
E) $0.13 \Omega$

Question

Quizplus · Accepted Answer

The reactance ($X_L$) of an inductor is calculated using the formula $X_L = 2\pi fL$, where $f$ is the frequency in hertz and $L$ is the inductance in henries. Substituting $f = 60 \mathrm{Hz}$ and $L = 20 \mathrm{mH} = 0.02 \mathrm{H}$, we get $X_L = 2 \pi \times 60 \times 0.02 = 7.54 \Omega$, which rounds to $7.5 \Omega$.

What Is the Reactance of A 20−mH20 - \mathrm { mH }20−mH

What Is the Reactance of A $20 - \mathrm { mH }$