a. Using the characteristics of Fig. 3.8, determine the resulting collector current if I_E= 3.5 mA and V_CB =10 V.
b. Repeat part (a) for I_E = 3.5 mA and V_CB = 20 V.
c. How have the changes in V_CB affected the resulting level of I_C ?
d. On an approximate basis, how are I_E and I_C related based on the results above?

Fig. 3.8

Transcribed Image Text:

+e (mA) Active region (unshaded area) 7 mA 7 6 mA 5 mA 5 4 mA 4 3 mA 2 mA Ig = 1 mA Ico=ICBO I=0 mA -1 t 10 VCB (V) 20 30 40 BV CBO Cutoff region Saturation region