MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The major advantage of the trans-impedance configuration over the high-impedance front end is ______________ |
| A. | Greater bandwidth |
| B. | Less bandwidth |
| C. | Greater dynamic range |
| D. | Less dynamic range |
| Answer» D. Less dynamic range | |
| 2. |
The mean square thermal noise current in the trans-impedance configuration is _________ greater than that obtained with the high-input-impedance configuration. |
| A. | 30 |
| B. | 20 |
| C. | 15 |
| D. | 10 |
| Answer» C. 15 | |
| 3. |
A high-input-impedance amplifier has following parameters (Total effective load resistance = 2M , Temperature = 300 K). Find the mean square thermal noise current per unit bandwidth for the high-impedance configuration. |
| A. | 8.9 10<sup>-27</sup>A<sup>2</sup>/Hz |
| B. | 8.12 10<sup>-27</sup>A<sup>2</sup>/Hz |
| C. | 8.29 10<sup>-27</sup>A<sup>2</sup>/Hz |
| D. | 8.4 10<sup>-27</sup>A<sup>2</sup>/Hz |
| Answer» D. 8.4 10<sup>-27</sup>A<sup>2</sup>/Hz | |
| 4. |
A high-impedance amplifier has an effective input resistance of 4M . Find the maximum bandwidth that may be obtained without equalization if the total capacitance is 6 pF and total effective load resistance is 2M . |
| A. | 13.3 kHz |
| B. | 14.2 kHz |
| C. | 15.8 kHz |
| D. | 13.9 kHz |
| Answer» B. 14.2 kHz | |