MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Power Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A_SCHOTTKY_DIODE_CAN_BE_SWITCHD_OFF_MUCH_FASTER_THAN_AN_EQUIVALENT_P-N_JUNCTION_DIODE_DUE_TO_ITS?$ |
| A. | higher operating frequency |
| B. | no recombination of charges |
| C. | more compact structure |
| D. | None of the mentioned |
| Answer» C. more compact structure | |
| 2. |
A_SCHOTTKY_DIODE_HAS___________?$ |
| A. | a gate terminal |
| B. | aluminum-silicon junction |
| C. | platinum gold junction |
| D. | germanium-Arsenide junction |
| Answer» C. platinum gold junction | |
| 3. |
As compared to a p-n junction diode(of the same rating), a Schottky diode has __________? |
| A. | higher cut-in voltage |
| B. | lower reverse leakage current |
| C. | higher operating frequency |
| D. | higher switching time |
| Answer» D. higher switching time | |
| 4. |
In a Schottky diode, the silcon is usually |
| A. | N-type |
| B. | P-type |
| C. | un-doped semiconductor |
| D. | silicon is not used |
| Answer» B. P-type | |
| 5. |
Which of the following are/is the majority charge carriers in a Schottky diode? |
| A. | Holes |
| B. | Electrons |
| C. | Both holes & Electrons carry equal current |
| D. | None of the mentioned |
| Answer» C. Both holes & Electrons carry equal current | |
| 6. |
A Schottky diode _____ |
| A. | has current flow due to holes only |
| B. | has no reverse recovery time |
| C. | has large amount of storage charges |
| D. | has zero cut-in voltage |
| Answer» C. has large amount of storage charges | |
| 7. |
Which of the below mentioned statements is false regarding Schottky diodes? |
| A. | Schottky diodes have a Al-Silicon junction |
| B. | There is no storage of charges in a Schottky diode |
| C. | The majority charge carriers in a Schottky diode are holes |
| D. | Schottky diodes can be switched off faster than a p-n junction diode of the same rating |
| Answer» D. Schottky diodes can be switched off faster than a p-n junction diode of the same rating | |
| 8. |
Which of the following diodes uses a metal-semiconductor junction? |
| A. | General purpose diodes |
| B. | Fast recovery diodes |
| C. | Schottky diode |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
In order to reduce the reverse recovery time of the diodes, __________ is carried out. |
| A. | shortening of the length of the device |
| B. | platinum & gold doping |
| C. | antimony doping |
| D. | adding an extra silicon layer |
| Answer» C. antimony doping | |