MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
Given yfs = 3.6mS and yos = 0.02mS, determine r0? |
| A. | 100Kohm |
| B. | 50Mohm |
| C. | 50Kohm |
| D. | 20Kohm |
| Answer» D. 20Kohm | |
| 2. |
In a small signal equivalent model of an FET, What does gm VGS stand for? |
| A. | A pure resistor |
| B. | Voltage controlled current source |
| C. | Current controlled current source |
| D. | Voltage controlled voltage source |
| Answer» C. Current controlled current source | |
| 3. |
Determine the value of output impedance for JFET, if the value of gm =1mS? |
| A. | 1Kohm |
| B. | 0 |
| C. | 100Kohm |
| D. | 5Kohm |
| Answer» B. 0 | |
| 4. |
A FET has IDSS=4ID and gm0 = 10mS then gm = _________________________ |
| A. | 10mS |
| B. | 20mS |
| C. | 5mS |
| D. | 14mS |
| Answer» D. 14mS | |
| 5. |
Find the value of gm for FET with IDSS=8mA, Vp=4V, VGS=-0.5V? |
| A. | 1mS |
| B. | 2mS |
| C. | 3mS |
| D. | 3.5mS |
| Answer» E. | |
| 6. |
Find the maximum value of gm for FET with IDSS=10mA, Vp=-2V, VGS=5V? |
| A. | 10mS |
| B. | 20mS |
| C. | 1mS |
| D. | 0 |
| Answer» B. 20mS | |
| 7. |
Which of the following is an expression for gm0? |
| A. | gm0 = IDSS/Vp |
| B. | gm0 = 2IDSS/|Vp| |
| C. | gm0 = IDSS/5Vp |
| D. | gm0 = IDSS/2Vp |
| Answer» C. gm0 = IDSS/5Vp | |
| 8. |
The slope obtained in VGS vs ID was 0.002. What is the value ofgm? |
| A. | 1 |
| B. | 2 |
| C. | 0.002 |
| D. | 0 |
| Answer» D. 0 | |
| 9. |
For a FET, graph is drawn by taking voltage VGS in X axis and drain current in Y axis, if the value of X changes from 10 to 20 results in change in value of Y axis from 2 to 3. What is the value of trans conductance? |
| A. | 1 |
| B. | 2 |
| C. | 0.1 |
| D. | 0.01 |
| Answer» D. 0.01 | |