MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
A series resonant circuit has an inductor L = 10 mH. The resonant frequency w = 10^6 rad/s and bandwidth is BW = 103 rad/s. The value of R and C will be |
| A. | 100 F, 10 ohm |
| B. | 100 pF, 10 ohm |
| C. | 100 pF, 10 Mega-ohm |
| D. | 100 F, 10 Meg-ohm |
| Answer» C. 100 pF, 10 Mega-ohm | |
| 2. |
For the RLC parallel resonant circuit when R = 8k, L = 40 mH and C = 0.25 F, the quality factor
|
| A. | 40 |
| B. | 20 |
| C. | 30 |
| D. | 10 |
| Answer» C. 30 | |
| 3. |
A series resonant circuit has L = 1 mH and C = 10 F. The required R (in ohm) for the BW = 15 9 . Hz is |
| A. | 0.1 |
| B. | 0.2 |
| C. | 0.0159 |
| D. | 500 |
| Answer» B. 0.2 | |
| 4. |
A parallel circuit has R = 1k ohm , C = 50 F and L = 10mH. The quality factor at resonance is |
| A. | 100 |
| B. | 90.86 |
| C. | 70.7 |
| D. | None of the above |
| Answer» D. None of the above | |
| 5. |
A parallel resonant circuit has a midband admittance of 25 X 10(-3) S, quality factor of 80 and a resonant frequency of 200 krad s. What is the value of C? |
| A. | 2 F |
| B. | 28.1 F |
| C. | 10 F |
| D. | 14.14 F |
| Answer» D. 14.14 F | |
| 6. |
A parallel resonant circuit has a midband admittance of 25 X 10(-3) S, quality factor of 80 and a resonant frequency of 200 krad s. What is the value of R (in ohm)? |
| A. | 40 |
| B. | 56.57 |
| C. | 80 |
| D. | 28.28 |
| Answer» B. 56.57 | |
| 7. |
A parallel resonant circuit has a resistance of 2k ohm and half power frequencies of 86 kHz and 90 kHz. What is the quality factor? |
| A. | 22 |
| B. | 100 |
| C. | 48 |
| D. | 200 |
| Answer» B. 100 | |
| 8. |
A parallel resonant circuit has a resistance of 2k ohm and half power frequencies of 86 kHz and 90 kHz. What is the value of the inductor? |
| A. | 4.3 mH |
| B. | 43 mH |
| C. | 0.16 mH |
| D. | 1.6 mH |
| Answer» D. 1.6 mH | |
| 9. |
A parallel resonant circuit has a resistance of 2k ohm and half power frequencies of 86 kHz and 90 kHz. What is the value of capacitor? |
| A. | 6 F |
| B. | 20 nF |
| C. | 2 nF |
| D. | 60 F |
| Answer» C. 2 nF | |