555555555561. Which of the following configurations has an output impedance Zo equal to RC? (a) Fixed-bias common-emitter (b) Common-emitter voltage-divider with bypass capacitor (c) Common-emitter voltage-divider without bypass capacitor (d) All of the above
555555555583. The bypass capacitor in a common-emitter configuration ________ the voltage gain. (a) significantly decreases (b) significantly increases (c) slightly increases (d) slightly decreases
Tags: bjt, amplifiers, bypass, capacitor, common-emitter, voltage, gain, electronics, engineering
555555555530. For a common-emitter amplifier, the purpose of the emitter bypass capacitor is (a) no purpose, since it is shorted out by RE. (b) to reduce noise. (c) to despike the supply voltage. (d) to maximize amplifier gain.
Tags: bjt, gain, voltage, amplifiers, capacitor, bypass, common-emitter, electronics, engineering
55555555559. Which one of the following configurations has the lowest input impedance? (a) Fixed-bias (b) Common-base (c) Emitter-follower (d) Voltage-divider?