MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 13 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. |
Identify the diamagnetic material. |
| A. | Silicon |
| B. | Germanium |
| C. | Silver |
| D. | Cobalt |
| Answer» C. Silver | |
| 2. |
Which of the following materials is ferrimagnetic? |
| A. | Fe |
| B. | Sn |
| C. | Fe2O3 |
| D. | FeCl |
| Answer» D. FeCl | |
| 3. |
Very small and positive susceptibility is found in |
| A. | Ferromagnetic |
| B. | Diamagnetic |
| C. | Paramagnetic |
| D. | Antiferromagnetic |
| Answer» D. Antiferromagnetic | |
| 4. |
WHICH_OF_THE_FOLLOWING_MATERIALS_IS_FERRIMAGNETIC??$ |
| A. | Fe |
| B. | Sn |
| C. | Fe<sub>2</sub>O<sub>3</sub> |
| D. | FeCl |
| Answer» D. FeCl | |
| 5. |
Identify_the_diamagnetic_material.$ |
| A. | Silicon |
| B. | Germanium |
| C. | Silver |
| D. | Cobalt |
| Answer» C. Silver | |
| 6. |
Very small and positive susceptibility is found i? |
| A. | Ferromagnetic |
| B. | Diamagnetic |
| C. | Paramagnetic |
| D. | Antiferromagnetic |
| Answer» D. Antiferromagnetic | |
| 7. |
Calculate the magnetization of a material with susceptibility of 50 and field intensity of 0.25 units. |
| A. | 12.5 |
| B. | 25 |
| C. | 75 |
| D. | 37.5 |
| Answer» B. 25 | |
| 8. |
Find the permeability of a medium whose susceptibility is 100. |
| A. | -100 |
| B. | 99 |
| C. | -99 |
| D. | 101 |
| Answer» E. | |
| 9. |
The expression for magnetization is given by(I-current, A-area, V-volume) |
| A. | M = IAV |
| B. | M = IA/V |
| C. | M = V/IA |
| D. | M = 1/IAV |
| Answer» C. M = V/IA | |
| 10. |
Find the current in a dipole with a moment of 16 units and area of 9 units. |
| A. | 1.78 |
| B. | 2.78 |
| C. | 1.87 |
| D. | 2.34 |
| Answer» B. 2.78 | |
| 11. |
The torque expression of a current carrying conductor is |
| A. | T = BIA cos θ |
| B. | T = BA cos θ |
| C. | T = BIA sin θ |
| D. | T = BA sin θ |
| Answer» D. T = BA sin ‚âà√≠‚Äö√†√® | |
| 12. |
Calculate the flux density due to a circular conductor of radius 100nm and current 5A in air. |
| A. | 10 |
| B. | 100 |
| C. | 0.1 |
| D. | 1 |
| Answer» B. 100 | |
| 13. |
Find the Lorentz force due to a conductor of length 2m carrying a current of 1.5A and magnetic flux density of 12 units. |
| A. | 24 |
| B. | 36 |
| C. | 32 |
| D. | 45 |
| Answer» C. 32 | |