MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In a CE transmitter amplifier, if the amplification factor is 150 and the collector voltage is 4 V and resistance is 2 kΩ, what should be the value of RB, given that the dc base current is 10 times the signal current? |
| A. | 5 kΩ |
| B. | 10 kΩ |
| C. | 15 kΩ |
| D. | 20 kΩ |
| Answer» E. | |
| 2. |
In which state is the switch said to be on? |
| A. | A |
| B. | B |
| C. | C |
| D. | Neither region |
| Answer» D. Neither region | |
| 3. |
From the figure, what is βac when VCE is 10V and Ic is 4 mA? |
| A. | 50 |
| B. | 100 |
| C. | 150 |
| D. | 200 |
| Answer» D. 200 | |
| 4. |
If Ie is the current entering the emitter, Ib is the current leaving the base and Ic is the current leaving the collector in a p-n-p transistor used for amplification, what is the relation between Ie, Ib and Ic? |
| A. | Ie < Ic |
| B. | Ic < Ib |
| C. | Ib < Ic |
| D. | Ie < Ib + Ic |
| Answer» D. Ie < Ib + Ic | |