MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When the conduction current density and displacement current density are same, the dissipation factor will be |
| A. | Zero |
| B. | Minimum |
| C. | Maximum |
| D. | Unity |
| Answer» E. | |
| 2. |
The time varying electric field E is conservative. State True/False. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
According to Faraday’s law, EMF stands for |
| A. | Electromagnetic field |
| B. | Electromagnetic force |
| C. | Electromagnetic friction |
| D. | Electromotive force |
| Answer» E. | |
| 4. |
WHEN_THE_CONDUCTION_CURRENT_DENSITY_AND_DISPLACEMENT_CURRENT_DENSITY_ARE_SAME,_THE_DISSIPATION_FACTOR_WILL_BE?$ |
| A. | Zero |
| B. | Minimum |
| C. | Maximum |
| D. | Unity |
| Answer» E. | |
| 5. |
THE_TIME_VARYING_ELECTRIC_FIELD_E_IS_CONSERVATIVE._STATE_TRUE/FALSE.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Find the force due to a current element of length 2cm and flux density of 12 tesla. The current through the element will be 5A. |
| A. | 1 N |
| B. | 1.2 N |
| C. | 1.4 N |
| D. | 1.6 N |
| Answer» C. 1.4 N | |
| 7. |
Find the displacement current when the flux density is given by t3 at 2 seconds. |
| A. | 3 |
| B. | 6 |
| C. | 12 |
| D. | 27 |
| Answer» D. 27 | |
| 8. |
Calculate the emf when a coil of 100 turns is subjected to a flux rate of 0.3 tesla/sec. |
| A. | 3 |
| B. | 30 |
| C. | -30 |
| D. | -300 |
| Answer» D. -300 | |
| 9. |
The induced voltage will oppose the flux producing it. State True/False. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Calculate the emf when the flux is given by 3sin t + 5cos t |
| A. | 3cos t – 5sin t |
| B. | -3cos t + 5sin t |
| C. | -3sin t – 5cos t |
| D. | 3cos t + 5sin t |
| Answer» C. -3sin t ‚Äö√Ñ√∂‚àö√ë‚àö¬® 5cos t | |
| 11. |
According to Faraday’s law, EMF stands for$ |
| A. | Electromagnetic field |
| B. | Electromagnetic force |
| C. | Electromagnetic friction |
| D. | Electromotive force |
| Answer» E. | |
| 12. |
For time varying currents, the field or waves will be |
| A. | Electrostatic |
| B. | Magneto static |
| C. | Electromagnetic |
| D. | Electrical |
| Answer» D. Electrical | |