MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What will the power gain of a transistor if it’s α value is 0.80 and the voltage gain is 95? |
| A. | 70 |
| B. | 80 |
| C. | 76 |
| D. | 75 |
| Answer» D. 75 | |
| 2. |
A transistor having α = 0.90 is used in a common base amplifier. If the load resistance is 5.0 kΩ and the dynamic resistance of the emitter junction is 50 Ω, then calculate the voltage gain. |
| A. | 50 |
| B. | 100 |
| C. | 70 |
| D. | 90 |
| Answer» E. | |
| 3. |
Identify the relationship between base current amplification (α) and emitter current amplification (β). |
| A. | β=\(\frac {\alpha }{1- \alpha}\) |
| B. | β=\(\frac {1 – \alpha }{\alpha}\) |
| C. | β=\(\frac {\alpha }{1 + \alpha}\) |
| D. | β=\(\frac {1 + \alpha }{1 – \alpha}\) |
| Answer» B. β=\(\frac {1 – \alpha }{\alpha}\) | |