Hi,
what is "gain" in the below picture? Can you give any equation?
And what is Q? In textbook, Q=wL/R where w is the resonant frequency*2*pi, but there is no resistance in this circuit.
I can understand fr1 below, but why fr2, why we can neglect Lm for calculating resonant frequency? And it's said that for f between fr1 and fr2, the circuit can be inductance or capacitance, why?
