A series RLC circuit with R= 45Ohm , L = 270 mH , and C = 4.0 mircoF is connected across a sine-wave generator whose peak output voltage is independent of frequency.
a) Find the minimum frequency of the frequency range over which the peak current will exceed half its value at resonance.
b) Find the maximum frequency of the frequency range over which the peak current will exceed half its value at resonance.