(Solved):   please with clear handwriting 50. For the Darlington network of Fig. 181: a. Determine th ...

 

please with clear handwriting

50. For the Darlington network of Fig. 181: a. Determine the dc levels of \( V_{B_{1}}, V_{C_{1}}, V_{E_{2}}, V_{C B_{1}} \), and \( V_{C E_{2}} \). b. Find the currents \( I_{B_{1}}, I_{B_{2}} \), and \( I_{E_{2}} \). c. Calculate \( Z_{i} \) and \( Z_{o} \). d. Determine the voltage gain \( A_{v}=V_{o} / V_{i} \) and current gain \( A_{i}=I_{o} / I_{i} \). FIG. 181