MCQOPTIONS
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MCQOPTIONS
This section includes 4 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. |
The most costly coupling is ____________ coupling |
| A. | Transformer |
| B. | Impedance |
| C. | RC |
| D. | Direct |
| Answer» B. Impedance | |
| 2. |
The maximum a.c. power output from a class A power amplifier is 10 W. What should be the minimum power rating of the transistor used? |
| A. | 20W |
| B. | 5 W |
| C. | 25W |
| D. | 50W |
| Answer» B. 5 W | |
| 3. |
When no signal is applied, the approximate collector efficiency of class A power amplifier is ____________ |
| A. | 25% |
| B. | 10% |
| C. | 0% |
| D. | 50% |
| Answer» D. 50% | |
| 4. |
A power amplifier has comparatively ____________ . |
| A. | Small |
| B. | Large |
| C. | Very large |
| D. | Same |
| Answer» B. Large | |