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. |
What is the conductivity when the Hall Effect coefficient is 5 and mobility is 5cm2 /s. |
| A. | a)100 S/m |
| B. | b)10 S/m |
| C. | c)0.0001S/m |
| D. | d)0.01 S/m |
| Answer» D. d)0.01 S/m | |
| 2. |
Calculate the Hall Effect coefficient when number of electrons in a semiconductor is 1020. |
| A. | a)0.625 |
| B. | b)0.0625 |
| C. | c)6.25 |
| D. | d)62.5 |
| Answer» C. c)6.25 | |
| 3. |
Calculate the Hall voltage when B=5A/m, I=2A, w=5cm and n=1020. |
| A. | a)3.125V |
| B. | b)0.3125V |
| C. | c)0.02V |
| D. | d)0.002V |
| Answer» E. | |
| 4. |
Which of the following formulae doesn’t account for correct expression for J? |
| A. | ρv |
| B. | I/wd |
| C. | σE |
| D. | µH |
| Answer» E. | |
| 5. |
Which of the following parameters can’t be found with Hall Effect? |
| A. | a)Polarity |
| B. | b)Conductivity |
| C. | c)Carrier concentration |
| D. | d)Area of the device |
| Answer» E. | |