MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What are the disadvantages of CE short circuit gain obtained with hybrid pi model circuits? |
| A. | Requires few resistors |
| B. | Provides a lot of stability |
| C. | Provides negative feedback |
| D. | Provides positive feedback |
| Answer» D. Provides positive feedback | |
| 2. |
How does the negative feedback help a CE short circuit gain obtained with hybrid pi model circuit? |
| A. | Helps make it more predictable |
| B. | Provides opposing change in base voltage |
| C. | Helps make it more predictable, provides opposing change in base voltage |
| D. | It doesn t affect |
| Answer» D. It doesn t affect | |
| 3. |
How do you calculate the value of VCE in CE short circuit gain obtained with hybrid pi model? |
| A. | V<sub>CE</sub> = V<sub>CC</sub> + I<sub>C</sub> (R<sub>C</sub> + R<sub>E</sub>) |
| B. | V<sub>CE</sub> = V<sub>CC</sub> I<sub>C</sub> (R<sub>C</sub> + R<sub>E</sub>) |
| C. | V<sub>CE</sub> = V<sub>CC</sub> I<sub>C</sub> (R<sub>B</sub> + R<sub>E</sub>) |
| D. | V<sub>CE</sub> = V<sub>CC</sub> + I<sub>C</sub> (R<sub>B</sub> + R<sub>E</sub>) |
| Answer» C. V<sub>CE</sub> = V<sub>CC</sub> I<sub>C</sub> (R<sub>B</sub> + R<sub>E</sub>) | |
| 4. |
How does emitter resistor RE provide stability in CE short circuit gain obtained with hybrid pi model? |
| A. | Consumes less power |
| B. | Has an easier circuit design |
| C. | Automatically biases the circuit |
| D. | It does not provide stability |
| Answer» D. It does not provide stability | |
| 5. |
Why is CE short circuit gain obtained with hybrid pi model better for linear circuits? |
| A. | Independent of |
| B. | Dependent on |
| C. | Highly predictable |
| D. | Not stable |
| Answer» C. Highly predictable | |
| 6. |
What happens if collector current increases in a CE short circuit gain obtained with hybrid pi model? |
| A. | Emitter voltage increases therefore base voltage increases |
| B. | Emitter voltage decreases therefore base voltage decreases |
| C. | Emitter voltage increases therefore base voltage decreases |
| D. | Emitter voltage decreases therefore base voltage increases |
| Answer» B. Emitter voltage decreases therefore base voltage decreases | |
| 7. |
What is the function of RE in the CE short circuit gain obtained with hybrid pi model? |
| A. | To improve stability and decrease positive feedback |
| B. | To improve stability and increase positive feedback |
| C. | To improve stability and decrease negative feedback |
| D. | To improve stability and increase negative feedback |
| Answer» E. | |
| 8. |
Why do we need CE short circuit gain obtained with hybrid pi model? |
| A. | To provide a non linear output |
| B. | To maintain transistor in active region |
| C. | To maintain transistor in saturation region |
| D. | To maintain transistor in cut off region |
| Answer» C. To maintain transistor in saturation region | |