MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Name some devices where maximum power has to be transferred to the load rather than maximum efficiency. |
| A. | Amplifiers |
| B. | Communication circuits |
| C. | Both amplifiers and communication circuits |
| D. | Neither amplifiers nor communication circuits |
| Answer» D. Neither amplifiers nor communication circuits | |
| 2. |
Under the condition of maximum power efficiency is? |
| A. | 100% |
| B. | 0% |
| C. | 30% |
| D. | 50% |
| Answer» E. | |
| 3. |
Calculate the maximum power transferred. |
| A. | 1.79W |
| B. | 4.55W |
| C. | 5.67W |
| D. | 3.78W |
| Answer» B. 4.55W | |
| 4. |
Calculate Eth. |
| A. | 3.43V |
| B. | 4.57V |
| C. | 3.23V |
| D. | 5.34V |
| Answer» C. 3.23V | |
| 5. |
Calculate the value of RL across A and B. |
| A. | 3.45ohm |
| B. | 2.91ohm |
| C. | 6.34ohm |
| D. | 1.54ohm |
| Answer» C. 6.34ohm | |
| 6. |
If ZL=Zs’, then RL=? |
| A. | -RL |
| B. | Rs |
| C. | -Rs |
| D. | 0 |
| Answer» C. -Rs | |
| 7. |
UNDER_THE_CONDITION_OF_MAXIMUM_POWER_EFFICIENCY_IS??$ |
| A. | 100% |
| B. | 0% |
| C. | 30% |
| D. | 50% |
| Answer» E. | |
| 8. |
Name_some_devices_where_maximum_power_has_to_be_transferred_to_the_load_rather_than_maximum_efficiency.$ |
| A. | Amplifiers |
| B. | Communication circuits |
| C. | Both amplifiers and communication circuits |
| D. | Neither amplifiers nor communication circuits |
| Answer» D. Neither amplifiers nor communication circuits | |
| 9. |
Does maximum power transfer imply maximum efficiency? |
| A. | Yes |
| B. | No |
| C. | Sometimes |
| D. | Cannot be determined |
| Answer» C. Sometimes | |
| 10. |
If ZL=Zs’, then RL=?$ |
| A. | -RL |
| B. | Rs |
| C. | -Rs |
| D. | 0 |
| Answer» C. -Rs | |
| 11. |
If source impedance is a complex number Z, then load impedance is equal to _________ |
| A. | Z’ |
| B. | -Z |
| C. | -Z’ |
| D. | Z |
| Answer» B. -Z | |
| 12. |
The maximum power is delivered to a circuit when source resistance is __________ load resistance. |
| A. | Greater than |
| B. | Equal to |
| C. | Less than |
| D. | Greater than or equal to |
| Answer» C. Less than | |
| 13. |
The maximum power drawn from source depends on __________ |
| A. | Value of source resistance |
| B. | Value of load resistance |
| C. | Both source and load resistance |
| D. | Neither source or load resistance |
| Answer» C. Both source and load resistance | |