MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which, among the following, do not have any unit? |
| A. | Absolute permittivity |
| B. | Relative permittivity |
| C. | Actual permittivity |
| D. | Both absolute and relative permittivity |
| Answer» C. Actual permittivity | |
| 2. |
Find the capacitance of a capacitor whose area of cross section of the plates is 4m2 and distance of separation between the plates is 2m. The capacitor is placed in vacuum. |
| A. | 1.77*10-11F |
| B. | 1.34*10-11F |
| C. | 2.33*10-11F |
| D. | 5.65*10-11F |
| Answer» B. 1.34*10-11F | |
| 3. |
WHICH,_AMONG_THE_FOLLOWING,_DO_NOT_HAVE_ANY_UNIT??$ |
| A. | Absolute permittivity |
| B. | Relative permittivity |
| C. | Actual permittivity |
| D. | Both absolute and relative permittivity |
| Answer» C. Actual permittivity | |
| 4. |
Which, among the following, will be unity in free space? |
| A. | Absolute permittivity |
| B. | Relative permittivity |
| C. | Actual permittivity |
| D. | Both absolute and relative permittivity |
| Answer» C. Actual permittivity | |
| 5. |
What is the unit for relative permittivity? |
| A. | F/m |
| B. | Fm |
| C. | F/m<sup>2</sup> |
| D. | No unit |
| Answer» E. | |
| 6. |
Calculate the actual permittivity of a medium whose relative permittivity is 5. |
| A. | 4.43*10<sup>-11</sup>F/m |
| B. | 4.43*10<sup>-12</sup>F/m |
| C. | 4.43*10<sup>11</sup>F/m |
| D. | 4.43*10<sup>12</sup>F/m |
| Answer» B. 4.43*10<sup>-12</sup>F/m | |
| 7. |
What happens to absolute permittivity when relative permittivity increases? |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | Becomes zero |
| Answer» D. Becomes zero | |
| 8. |
What is the relative permittivity when the actual permittivity is 4F/m? |
| A. | 4.57*10<sup>-11</sup> |
| B. | 4.57*10<sup>12</sup> |
| C. | 4.57*10<sup>11</sup> |
| D. | 4.57*10<sup>-12</sup> |
| Answer» D. 4.57*10<sup>-12</sup> | |
| 9. |
What happens to relative permittivity when actual permittivity decreases? |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | Becomes zero |
| Answer» C. Remains the same | |
| 10. |
What is relative permittivity? |
| A. | Equal to the absolute permittivity |
| B. | Ratio of actual permittivity to absolute permittivity |
| C. | Ratio of absolute permittivity to actual permittivity |
| D. | Equal to the actual permittivity |
| Answer» C. Ratio of absolute permittivity to actual permittivity | |
| 11. |
Find the capacitance of a capacitor whose area of cross section of the plates is 4m2 and distance of separation between the plates is 2m. The capacitor is placed in vacuum. |
| A. | 1.77*10<sup>-11</sup>F |
| B. | 1.34*10<sup>-11</sup>F |
| C. | 2.33*10<sup>-11</sup>F |
| D. | 5.65*10<sup>-11</sup>F |
| Answer» B. 1.34*10<sup>-11</sup>F | |
| 12. |
In order to obtain a high value for capacitance, the permittivity of the dielectric medium should be? |
| A. | Low |
| B. | High |
| C. | Zero |
| D. | Unity |
| Answer» C. Zero | |