$$An inductor designed to filter high$-$frequency noise from power supplied to a personal computer is placed in series with the computer.

Randomized Variables

XL $=2\mathrm{.}15$ k$$

fmin $=17\mathrm{.}5$ kHz

$$Part $($a$)$

What minimum inductance in mH should it have to produce a $2\mathrm{.}15$ k$$ reactance for all noise over a frequency of $17\mathrm{.}5$ kHz$?$

$$Part $($b$)$

What is its reactance in $$ at $60\mathrm{.}0$ Hz$?$