Question 1. An advantage of direct - coupled amplifiers is that they?
- make ideal clippers
- can amplify a signal without inverting it
- can amplify a signal without changing its d-c reference level
- make ideal limiters
Question 2. An NPN common emitter transistor, when operated without d-c bias, can be used as a?
- d-c restorer
- baseline stabilizer
- negative peak clipper
- positive peak clipper
Question 3. What is the bandwidth of an amplifier that produces a square wave with a rise time of 2 msec? (microseconds)
- 70 kHz
- 175 kHz
- 20 kHz
- 57 kHz