A series \(R L C\) bandstop circuit is to be used as a notch filter to eliminate a bothersome \(100-\mathrm{Hz}\) hum in an international audio channel application. The signal source has a Thévenin resistance of \(75 \Omega\). Select values of \(L\) and \(C\) so that the stopband cutoff frequencies are between \(70 \mathrm{~Hz}\) and \(140 \mathrm{~Hz}\). The  notch should provide at least \(50 \mathrm{~dB}\) of attenuation. Use Multisim to verify your design.