5. In an amplifier with negative feedback, the bandwidth is :
where A = gain of the basic amplifier and β = feedback factor
(a) increased by a factor of β
(b) decreased by a factor of β
(c) increased by a factor of (1+Aβ)
(d) not affected at all by the feedbackSubject 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 - 134. When negative voltage feedback is applied to an amplifier, its bandwidth ........ (a) is increased (b) is decreased (c) remains the same (d) insufficient data- 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 - 128. Negative feedback is employed in ....... (a) oscillators (b) rectifiers (c) amplifiers (d) none of the above
- 5555555555 70. An amplifier with a gain of –500 and a feedback of β = –0.1 has a gain change of 15% due to temperature. Calculate the change in gain of the feedback amplifier. (a) 0.2% (b) 0.3% (c) 0.4% (d) 0.5%
- Amplifiers » Exercise - 131. When current feedback (negative) is applied to an amplifier, its output impedance ...... (a) is increased (b) is decreased (c) remains the same (d) none of the above