MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Regarding the negative feedback amplifier, which of the following statements is wrong? |
| A. | Widens the separation between 3db frequency |
| B. | Improves gain stability |
| C. | Increases gain bandwidth product |
| D. | Reduces distortion |
| Answer» D. Reduces distortion | |
| 2. |
A system has a gain of 80 db without feedback, if the negative feedback is 1/50th. What is the closed loop gain of the system in db with the addition of the negative feedback? |
| A. | 34db |
| B. | 40db |
| C. | 30db |
| D. | 42db |
| Answer» B. 40db | |
| 3. |
What would be the value of feedback voltage in a negative feedback amplifier with A=100; =0.03 and input signal voltage = 40mv? |
| A. | 0.03V |
| B. | 0.06V |
| C. | 0.09V |
| D. | 0.12V |
| Answer» E. | |