MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 12 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. |
What is the correct formula for quality factor? |
| A. | Q=BW*fr |
| B. | Q=BW/fr |
| C. | Q=fr/BW |
| D. | Q=fr2 |
| Answer» D. Q=fr2 | |
| 2. |
The current lags the supply voltage in a series RLC circuit has its frequency _________ the resonant frequency. |
| A. | Above |
| B. | Below |
| C. | Equal to |
| D. | Cannot be determined |
| Answer» B. Below | |
| 3. |
Resonance frequency occurs when __________________ |
| A. | XL=XC |
| B. | XL>XC |
| C. | XL<XC |
| D. | Cannot be determined |
| Answer» B. XL>XC | |
| 4. |
WHAT_IS_THE_CORRECT_FORMULA_FOR_QUALITY_FACTOR??$ |
| A. | Q=BW*fr |
| B. | Q=BW/fr |
| C. | Q=fr/BW |
| D. | Q=fr2 |
| Answer» D. Q=fr2 | |
| 5. |
In resonance condition, current ________ voltage? |
| A. | Leads |
| B. | Lags |
| C. | Is in phase with |
| D. | Is greater than |
| Answer» D. Is greater than | |
| 6. |
What is the power factor of a series RLC circuit under resonance condition? |
| A. | 0 |
| B. | 1 |
| C. | Infinity |
| D. | 100 |
| Answer» C. Infinity | |
| 7. |
The current leads the supply voltage in a series RLC circuit has its frequency _________ the resonant frequency. |
| A. | Above |
| B. | Below |
| C. | Equal to |
| D. | Cannot be determined |
| Answer» C. Equal to | |
| 8. |
Resonant frequency is when ___________ |
| A. | XL=XC |
| B. | XL>XC |
| C. | XL<XC |
| D. | Cannot be determined |
| Answer» B. XL>XC | |
| 9. |
What happens to the quality factor when resonant frequency increases? |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | Becomes zero |
| Answer» B. Decreases | |
| 10. |
What happens to the quality factor when the bandwidth increases? |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | Becomes zero |
| Answer» C. Remains the same | |
| 11. |
What is the SI unit for quality factor? |
| A. | Hz |
| B. | kHz |
| C. | MHz |
| D. | No unit |
| Answer» E. | |
| 12. |
If the resonant frequency in a series RLC circuit is 50kHz along with a bandwidth of 1kHz, find the quality factor. |
| A. | 5 |
| B. | 50 |
| C. | 100 |
| D. | 500 |
| Answer» C. 100 | |