Power Amplifiers » Exercise – 1
9. The pulsating d.c. applied to power amplifier causes :
(a) Hum in the circuit
(b) Burning of transistor
(c) Excessive forward voltage
(d) None of the above
| 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
555555555597. The beta of a power transistor is generally ________. (a) more than 200 (b) 100 to 200 (c) less than 100 (d) 0- Power Amplifiers » Exercise - 16. Transformer coupling can be used in …………… amplifiers. (a) Only power (b) Only voltage (c) Either power or voltage (d) None of the above
- Power Amplifiers » Exercise - 14. A power amplifier has comparatively …………….. β. (a) Small (b) Large (c) Very large (d) None of the above
- 555555555561. What is the maximum efficiency of a class B circuit? (a) 90% (b) 78.5% (c) 50% (d) 25%
- Amplifiers » Exercise - 13. The maximum possible collector circuit efficiency of an ideal class A power amplifier is : (a) 15% (b) 25% (c) 50% (d) 75%