MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If channel length modulation is neglected, what is the overall voltage gain of the following circuit? |
| A. | – {gm1 * (Rd || 1/gm2) * (Rd1/ (1/gm2 + Rd))} |
| B. | – {gm1 * (Rd || 1/gm2) * gm2 * 2Rd1} |
| C. | – {gm1 * Rd * gm2 * Rd1} |
| D. | )}b) – {gm1 * (Rd || 1/gm2) * gm2 * 2Rd1}c) – {gm1 * Rd * gm2 * Rd1}d) – {gm1 * 1/gm2 * gm2 * Rd1} |
| Answer» B. – {gm1 * (Rd || 1/gm2) * gm2 * 2Rd1} | |
| 2. |
If channel length modulation is neglected, what is the voltage gain for the following circuit? |
| A. | – {gm1 * Rd * Rd / (1/gm2 + Rs)} |
| B. | – (gm1 * 2Rd * Rd / Rs) |
| C. | – {gm1 * Rd * Rd / (1/gm2 + Rs)} |
| D. | – {gm1 * Rd * Rd / (1/gm2 + 2Rs)} |
| Answer» B. – (gm1 * 2Rd * Rd / Rs) | |
| 3. |
If channel length modulation is present, what is the voltage gain of the following circuit? |
| A. | gm1 * (Rd || ro1) * gm2 * Rd1 |
| B. | – {gm1 * Rd * gm2 * 2(Rd1 || ro2)} |
| C. | – {gm1 * (Rd || ro1) * gm2 * (Rd1 || ro2)} |
| D. | gm1 * 2Rd * gm2 * Rd1 |
| Answer» D. gm1 * 2Rd * gm2 * Rd1 | |
| 4. |
If channel length modulation is neglected, what is the voltage gain of the following circuit? |
| A. | – {gm1 * Rd * gm2 * Rd1} |
| B. | gm1 * Rd * gm2 * 2Rd1 |
| C. | – {gm1 * Rd * 2gm2 * Rd1} |
| D. | gm1 * 2Rd * gm2 * Rd1 |
| Answer» B. gm1 * Rd * gm2 * 2Rd1 | |
| 5. |
The voltage gain of a simple CG stage is greater than that of a follower. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The current gain of a simple CG stage is approximate ____________ |
| A. | Infinity |
| B. | unity |
| C. | twice |
| D. | 0 |
| Answer» C. twice | |
| 7. |
If channel length modulation is present. what is the overall output impedance of the following CG stage? |
| A. | Rd || {Rs*(1+gm * ro) + ro} |
| B. | Rd || {Rs*(1+gm * ro) + 2ro} |
| C. | Rd || {Rs*(1+gm * ro) – ro} |
| D. | Rd || {Rs*(2+gm * ro) + ro} |
| Answer» B. Rd || {Rs*(1+gm * ro) + 2ro} | |
| 8. |
If channel length modulation is neglected, what is the voltage gain for the following CG stage? |
| A. | Rd/(1/gm – Rs) |
| B. | Rd/(3/gm + Rs) |
| C. | Rd/(1/gm + Rs) |
| D. | Rd/(2/gm + Rs) |
| Answer» D. Rd/(2/gm + Rs) | |
| 9. |
If channel length modulation is present, what is the output impedance of the following circuit? |
| A. | Rd |
| B. | Rd || ro |
| C. | ro |
| D. | 0 |
| Answer» C. ro | |
| 10. |
If channel length modulation is neglected, what is the voltage gain for the following circuit from source to drain? |
| A. | gm * Rd |
| B. | gm * ro |
| C. | gm * (ro || Rd) |
| D. | -gm * Rd |
| Answer» B. gm * ro | |
| 11. |
What is the input impedance for the following circuit? |
| A. | ro |
| B. | 1/gm |
| C. | Rd || ro |
| D. | Infinite |
| Answer» C. Rd || ro | |
| 12. |
If Channel Length modulation is neglected, what is the voltage gain from the source to the drain for the CG stage shown below? |
| A. | gm * Rd * {2Rs / (Rs + 1/gm)} |
| B. | gm * Rd * {Rs / (Rs + 2/gm)} |
| C. | gm * Rd * {2Rs / (Rs – 1/gm)} |
| D. | gm * Rd * {Rs / (Rs + 1/gm)} |
| Answer» E. | |
| 13. |
What is the input impedance of the following CG stage? |
| A. | 1/gm |
| B. | 2* Rs || 1/gm |
| C. | Rs || 1/gm |
| D. | Rs || 2/gm |
| Answer» D. Rs || 2/gm | |
| 14. |
In the following circuit, what is the voltage at the source of the M1? |
| A. | Vin * Rs / (Rs + 1/gm) |
| B. | Vin * Rs / (Rs + gm) |
| C. | Vin * Rs / (Rs – 1/gm) |
| D. | Vin * Rs / (Rs + 2/gm) |
| Answer» B. Vin * Rs / (Rs + gm) | |