7. Negative feedback in an amplifier :
(a) reduces the voltage gain
(b) increases the voltage gain
(c) does not affect the voltage gain
(d) converts the amplifier into an oscillatorSubject Name : Electronics Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
GATE 2023 Total Info ENGG DIPLOMA UGC NET Total Info IES 2023 Total Info PSUs 2022 Total Info CSIR UGC NET Total Info JAM 2023 Total Info M TECH 2023 Total Info RAILWAY 2022 Total Info
Related Posts
Amplifiers » Exercise - 123. If the feedback fraction of an amplifier is 0.01, then voltage gain with negative voltage feedback is approximately ....... (a) 500 (b) 100 (c) 1000 (d) 5000- Amplifiers » Exercise - 145. If the voltage gain of an amplifier without feedback is 20 and with negative voltage feedback it is 12, then feedback fraction is ........ (a) 5/3 (b) 3/5 (c) 1/5 (d) 0.033
- Amplifiers » Exercise - 147. An amplifier has an open loop voltage gain of 1,00,000. With negative voltage feedback, the voltage gain is reduced to 100. What is the sacrifice factor ? (a) 1000 (b) 100 (c) 5000 (d) none of the above
- Amplifiers » Exercise - 119. When negative voltage feedback is applied to an amplifier, its voltage gain ............ (a) is increased (b) is reduced (c) remains the same (d) none of the above
- Operational Amplifier » Exercise - 122. A voltage follower .... (a) has a voltage gain of 1 (b) in noninverting (c) has no feedback resistor (d) has all of these