5555555555
196. The resistors Rf and Ri in an op-amp circuit control ______ .
(a) positive feedback and current gain
(b) negative feedback and power gain
(c) negative feedback and voltage gain
(d) open and closed loop gain
| Subject 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
555555555591. Positive feedback results in ________. (a) decreased voltage gain (b) increased voltage gain (c) oscillation in the circuit (d) None of the above- 555555555544. A class A amplifier has a voltage gain of 30 and a current gain of 25. What is the power gain? (a) 30 (b) 25 (c) 1.2 (d) 750
- 5555555555194. The feedback resistor has a value of ______ in the given circuit (a) 2 k (b) 10.5 k (c) 21 k (d) 40 k
- 5555555555190. The voltage gain is ______ for the amplifier in the given circuit. (a) –4 (b) –5 (c) –6 (d) –7
- Operational Amplifier » Exercise - 120. If feedback resistor in Q.15 is open, the voltage gain ........... (a) increases (b) decreases (c) is not affected (d) depends on R