A. voltage shunt feedback
B. current series feedback
C. negative voltage feedback
D. positive current feedback
Related Mcqs:
- When a transistor is connected in common emitter mode, it with have__________?
A. negligible input resistance and high output resistance
B. high input resistance and low output resistance
C. medium input resistance and high output resistance
D. low input resistance as well as output resistance - Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in____________?
A. Only the temperature
B. only the β of the transistor
C. Both Temperature & β
D. None of the above - A change in the value of the emitter resistance Re in a differential amplifier?
A. affects the difference mode gain Ad
B. affects the common mode gain Ac
C.affects both Ad and Ac
D. does not effect either Ad and Ac - In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db &2db respectively, then its common mode rejection ratio is__________?
A. 23dB
B. 25dB
C. 46dB
D. 50dB - A differential amplifier has a differential gain of 20,000 . CMRR=80 dB. The common mode gain is given by________?
A. 2
B. 1
C. 1/2
D. 0 - Which of the following is not associated with a p-n junction?
A. junction capacitance
B. charge storage capacitance
C. depletion capacitance
D. channel length modulation - A 741-type OP-AMP has a gain-bandwidth product of 1MHz. A non-inverting amplifier using this op-amp & having a voltage gain of 20db will exhibit -3db bandwidth of__________?
A. 50 KHz
B. 100KHz
C. 1000/17 KHz
D. 1000/7.07 KHz - In a transistor leakage current mainly depends on__________?
A. doping of base
B. size of emitter
C. rating of transistor
D. temperature - A source follower using an FET usually has a voltage gain which is___________?
A. greater than +100
B. slightly less than unity but positive
C. exactly unity but negative
D. about -10 - Which of the following amplifier circuit using junction transistor has the best gain?
A. Common base
B. Common emitter
C. Common collector
D. All have the same gain
