a. Using the characteristics of Fig. 3.23c, determine ton and toff at a current of 2 mA. the use of log scales and the possible need to refer to Section 9.2.
b. Repeat part (a) at a current of 10 mA. How have ton and toff changed with increase in collector current?
c. For parts (a) and (b), sketch the pulse waveform of Fig. 4.81 and compare results.