MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A transistor has an IE of 0.9mA and amplification factor of 0.98. What will be the IC? |
| A. | 0.745mA |
| B. | 0.564mA |
| C. | 0.236mA |
| D. | 0.882mA |
| Answer» E. | |
| 2. |
The relation between α and β is _________ |
| A. | β=α/(1-α) |
| B. | α= β/(1+β) |
| C. | β=α/(1+α) |
| D. | α= β/(1- β) |
| Answer» C. β=α/(1+α) | |
| 3. |
Determine the value of emitter current and collector current of a transistor having α=0.98 and collector to base leakage current ICBO=4µA. The base current is 50µA. |
| A. | 1.5mA |
| B. | 3.7mA |
| C. | 2.7mA |
| D. | 4.5mA |
| Answer» D. 4.5mA | |
| 4. |
The emitter current IE in a transistor is 3mA. If the leakage current ICBO is 5µA and α=0.98, calculate the collector and base current. |
| A. | 3.64mA and 35µA |
| B. | 2.945mA and 55µA |
| C. | 3.64mA and 33µA |
| D. | 5.89mA and 65µA |
| Answer» C. 3.64mA and 33µA | |
| 5. |
A transistor has an IC of 100mA and IB of 0.5mA. What is the value of αdc? |
| A. | 0.787 |
| B. | 0.995 |
| C. | 0.543 |
| D. | 0.659 |
| Answer» C. 0.543 | |