$($a$)$

Calculate the resonant angular frequency $($in rad$/$s$)$ of an RLC series circuit for which

R $=27,$

L $=82$ mH$,$

and

C $=4\mathrm{.}4$F$.$

rad$/$s

$($b$)$

If R is changed to $300,$ what happens to the resonant angular frequency?

The resonant angular frequency would increase.The resonant angular frequency would decrease.$$The resonant angular frequency would remain the same.