shows how easy it is to operate the transconductor of as a CE amplifi er. Since all biasing is done internally (to avoid cluttering, the power supplies are not explicitly shown), and the device is...

shows how easy it is to operate the transconductor of as a CE amplifi er. Since all biasing is done internally (to avoid cluttering, the power supplies are not explicitly shown), and the device is capable of true fourquadrant operation, the external resistors can be terminated directly to ground, as shown. (a) Assuming the parameters of estimate the voltage gain vcyvb. What is its polarity? (b) Repeat if RE 5 250 V and RC 5 `. (c) Repeat if RE 5 0 and RC 5 `, and comment.