The transistor is biased with a constant current source ???? = 1mA and β = 100. a) Neglecting the early effect, find the dc voltages at the base, emitter, and collector. b) [4] Find gm, rπ c) [5] If terminal Z is connected to ground, X to a signal source vsig with a source resistance Rsig = 2kΩ, and Y to an 8 kΩ load resistance, use the hybrid-π model to draw the small-signal circuit. calculate the overall voltage gain vy vsig .