MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Vlsi knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
MOSFET is used as ___________ |
| A. | current source |
| B. | voltage source |
| C. | buffer |
| D. | divider |
| Answer» B. voltage source | |
| 2. |
When the threshold voltage is more, leakage current will be? |
| A. | more |
| B. | less |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» C. all of the mentioned | |
| 3. |
When the channel pinches off? |
| A. | Vgs > Vds |
| B. | Vds > Vgs |
| C. | Vds > (Vgs-Vth) |
| D. | Vgs > (Vds-Vth) |
| Answer» D. Vgs > (Vds-Vth) | |
| 4. |
In linear region ______ channel exists. |
| A. | uniform |
| B. | non-uniform |
| C. | wide |
| D. | uniform and wide |
| Answer» B. non-uniform | |
| 5. |
The current Ids _______ as Vds increases. |
| A. | increases |
| B. | decreases |
| C. | remains fairly constant |
| D. | exponentially increases |
| Answer» D. exponentially increases | |
| 6. |
Threshold voltage is negative for __________ |
| A. | nMOS depletion |
| B. | nMOS enhancement |
| C. | pMOS depletion |
| D. | pMOS enhancement |
| Answer» B. nMOS enhancement | |
| 7. |
What is the condition for saturation? |
| A. | Vgs = Vds |
| B. | Vds = Vgs Vt |
| C. | Vgs = Vds Vt |
| D. | Vds > Vgs Vt |
| Answer» C. Vgs = Vds Vt | |
| 8. |
In resistive region __________ |
| A. | Vds greater than (Vgs Vt) |
| B. | Vds lesser than (Vgs Vt) |
| C. | Vgs greater than (Vds Vt) |
| D. | Vgs lesser than (Vds Vt) |
| Answer» C. Vgs greater than (Vds Vt) | |
| 9. |
What is the mobility of proton or hole at room temperature? |
| A. | 650 cm<sup>2</sup>/V sec |
| B. | 260 cm<sup>2</sup>/V sec |
| C. | 240 cm<sup>2</sup>/V sec |
| D. | 500 cm<sup>2</sup>/V sec |
| Answer» D. 500 cm<sup>2</sup>/V sec | |
| 10. |
Eds is given by __________ |
| A. | Vds / L |
| B. | L / Vds |
| C. | Vds x L |
| D. | Vdd / L |
| Answer» B. L / Vds | |
| 11. |
Velocity can be given as __________ |
| A. | / Vds |
| B. | / Eds |
| C. | x Eds |
| D. | Eds / |
| Answer» C. x Eds | |
| 12. |
Transit time can be given by __________ |
| A. | L / v |
| B. | v / L |
| C. | v x L |
| D. | v x d |
| Answer» B. v / L | |
| 13. |
Ids can be given by __________ |
| A. | Qc x |
| B. | Qc / |
| C. | / Qc |
| D. | Qc / 2 |
| Answer» C. / Qc | |
| 14. |
Ids depends on ___________ |
| A. | Vg |
| B. | Vds |
| C. | Vdd |
| D. | Vss |
| Answer» C. Vdd | |