Answer
The reactance is $~~24.5~\Omega$
Work Step by Step
In part (a), we found that $~~\omega_d = 4082.5~rad/s$
We can find the reactance:
$X_L = \omega_d~L$
$X_L = (4082.5~rad/s)(6.0\times 10^{-3}~H)$
$X_L = 24.5~\Omega$
The reactance is $~~24.5~\Omega$
