MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 3 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. |
Find the capacitance of layer of A12 O3 that is 0.5μm thick and 2000mm2 of square area εr = 8. |
| A. | 1000μF |
| B. | 0.283μF |
| C. | 16μF |
| D. | 2.83μF |
| Answer» C. 16μF | |
| 2. |
Calculate the dielectric constant of a material which when inserted in parallel condenser of area 10mm × 10mm and distance of separation of 2mm, gives a capacitance of 10-9 F. |
| A. | 8.854×10-12 |
| B. | 100 |
| C. | 2259 |
| D. | 5354 |
| Answer» D. 5354 | |
| 3. |
Calculate the electronic polarizability of an argon atom whose ɛr = 1.0024 at NTP and N = 2.7×1025 atoms/m3. |
| A. | 0.0024 Fm2 |
| B. | 7.87 ×10-40 Fm2 |
| C. | 7.87 Fm2 |
| D. | 1.0024×10-40 Fm2 |
| Answer» C. 7.87 Fm2 | |