MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The collector current Ic is related to the emitter current Ie by a factor k. If b is the transistor parameter then the value of k in terms of b is |
| A. | k = b/(b + 1) |
| B. | k = (b + 1)/b |
| C. | b = (k + 1)/k |
| D. | None of the mentioned |
| Answer» B. k = (b + 1)/b | |
| 2. |
The range for the transistor parameter also referred as common-emitter current gain has a value of__________ for common devices. |
| A. | 50-200 |
| B. | 400-600 |
| C. | 750-1000 |
| D. | > 1000 |
| Answer» B. 400-600 | |
| 3. |
On which of the following does the collector current not depends upon? |
| A. | Saturation current |
| B. | Thermal voltage |
| C. | Voltage difference between the base and emitter |
| D. | None of the mentioned |
| Answer» E. | |
| 4. |
THE_COLLECTOR_CURRENT_IC_IS_RELATED_TO_THE_EMITTER_CURRENT_IE_BY_A_FACTOR_K._IF_B_IS_THE_TRANSISTOR_PARAMETER_THEN_THE_VALUE_OF_K_IN_TERMS_OF_B_IS?$ |
| A. | k = b/(b + 1) |
| B. | k = (b + 1)/b |
| C. | b = (k + 1)/k |
| D. | None of the mentioned |
| Answer» B. k = (b + 1)/b | |
| 5. |
THE_RANGE_FOR_THE_TRANSISTOR_PARAMETER_ALSO_REFERRED_AS_COMMON-EMITTER_CURRENT_GAIN_HAS_A_VALUE_OF___________FOR_COMMON_DEVICES.?$ |
| A. | 50-200 |
| B. | 400-600 |
| C. | 750-1000 |
| D. | > 1000 |
| Answer» B. 400-600 | |
| 6. |
On which of the following does the scale current not depends upon? |
| A. | Effective width of the base |
| B. | Charge of an electron |
| C. | Electron diffusivity |
| D. | Volume of the base-emitter junction |
| Answer» E. | |
| 7. |
In cut off mode |
| A. | The base-emitter junction is forward biased and emitter-collector junction is reversed biased |
| B. | The base-emitter junction is forward biased and emitter-collector junction is forward biased |
| C. | The base-emitter junction is reversed biased and emitter-collector junction is reversed biased |
| D. | The base-emitter junction is reversed biased and emitter-collector junction is forward biased |
| Answer» D. The base-emitter junction is reversed biased and emitter-collector junction is forward biased | |
| 8. |
If a BJT is to be used as a switch, it must operate in____________ |
| A. | Cut-off mode or active mode |
| B. | Active Mode or saturation mode |
| C. | Cut-off mode or saturation mode |
| D. | Cut-off mode or saturation mode or active mode |
| Answer» D. Cut-off mode or saturation mode or active mode | |
| 9. |
If a BJT is to be used as an amplifier, then it must operate in___________ |
| A. | Cut-off mode |
| B. | Active mode |
| C. | Saturation mode |
| D. | All of the mentioned |
| Answer» C. Saturation mode | |
| 10. |
In which of the following modes can a BJT be used? |
| A. | Cut-off mode |
| B. | Active mode |
| C. | Saturation mode |
| D. | All of the mentioned |
| Answer» E. | |
| 11. |
The number of pn junctions in a BJT is/are |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 12. |
Which of the following is not a part of a BJT? |
| A. | Base |
| B. | Collector |
| C. | Emitter |
| D. | None of the mentioned |
| Answer» E. | |