Question-7 In the circuit in Figure 7, the unregulated DC source is Vi=14V, Vz=6.3V, r=200, r_(z)=6800, I_(L)=400mA, \beta =30, V_(BE) =VD=0.7V
a- Calculate the voltage Vo at the output.
b- Calculate the thermal power (Pc) consumed in the transistor through the load Rı.
c- Calculate the Sv stability factor of this circuit.