Q1. An NPN common emitter transistor, if operated without d-c bias, can be employed as?
A. d-c restorer
B. Negative peak clipper
C. Positive peak clipper
D. Baseline stabilizer
Q2. Determine the bandwidth of an amplifier which produces a square wave with a rise time of 2 msec (Microseconds)?
A. 20 kHz
B. 57 kHz
C. 70 kHz
D. 175 kHz
Q3. The benefit of direct - coupled amplifiers is that they?
A. Makes ideal clippers
B. Makes ideal limiters
C. Can amplify a signal without inverting it
D. Can amplify a signal with no changing its d-c reference level