MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Which of the following is true regarding magnetic lines of force? |
| A. | Real |
| B. | Imaginary |
| C. | Does not exist |
| D. | Parallel to field |
| Answer» C. Does not exist | |
| 2. |
Find the magnetization of the field which has a magnetic moment 16 units in a volume of 1.2 units. |
| A. | 16.67 |
| B. | 13.33 |
| C. | 15.56 |
| D. | 18.87 |
| Answer» C. 15.56 | |
| 3. |
The Bohr magneton is given by |
| A. | eh/2m |
| B. | eh/2πm |
| C. | eh/4m |
| D. | eh/4πm |
| Answer» E. | |
| 4. |
Calculate the Larmer angular frequency for a magnetic flux density of 12.34 x 10-10. |
| A. | 108.36 |
| B. | 810.63 |
| C. | 368.81 |
| D. | 183.36 |
| Answer» B. 810.63 | |
| 5. |
Find the orbital dipole moment in a field of dipoles of radius 20cm and angular velocity of 2m/s(in 10-22 order) |
| A. | 64 |
| B. | 76 |
| C. | 54 |
| D. | 78 |
| Answer» B. 76 | |
| 6. |
FIND_THE_MAGNETIZATION_OF_THE_FIELD_WHICH_HAS_A_MAGNETIC_MOMENT_16_UNITS_IN_A_VOLUME_OF_1.2_UNITS.?$ |
| A. | 16.67 |
| B. | 13.33 |
| C. | 15.56 |
| D. | 18.87 |
| Answer» C. 15.56 | |
| 7. |
Which of the following is true regarding magnetic lines of force?$ |
| A. | Real |
| B. | Imaginary |
| C. | Does not exist |
| D. | Parallel to field |
| Answer» C. Does not exist | |
| 8. |
The Bohr magneton is given b? |
| A. | eh/2m |
| B. | eh/2πm |
| C. | eh/4m |
| D. | eh/4πm |
| Answer» E. | |
| 9. |
Calculate the Larmer angular frequency for a magnetic flux density of 12.34 x 10-10. |
| A. | 108.36 |
| B. | 810.63 |
| C. | 368.81 |
| D. | 183.36 |
| Answer» B. 810.63 | |
| 10. |
The ratio of the orbital dipole moment to the orbital angular moment is given by |
| A. | e/m |
| B. | –e/m |
| C. | e/2m |
| D. | –e/2m |
| Answer» E. | |
| 11. |
Find the orbital angular moment of a dipole with angular velocity of 1.6m/s and radius 35cm(in 10-31 order) |
| A. | 1.78 |
| B. | 8.71 |
| C. | 7.18 |
| D. | 2.43 |
| Answer» B. 8.71 | |
| 12. |
Find the orbital dipole moment in a field of dipoles of radius 20cm and angular velocity of 2m/s(in 10-22 order) |
| A. | 64 |
| B. | 76 |
| C. | 54 |
| D. | 78 |
| Answer» B. 76 | |
| 13. |
The magnetization is defined by the ratio of |
| A. | Magnetic moment to area |
| B. | Magnetic moment to volume |
| C. | Magnetic flux density to area |
| D. | Magnetic flux density to volume |
| Answer» C. Magnetic flux density to area | |
| 14. |
Find the torque of a loop with magnetic moment 12.5 and magnetic flux density 7.65 units is |
| A. | 95.625 |
| B. | 65.925 |
| C. | 56.525 |
| D. | 65.235 |
| Answer» B. 65.925 | |
| 15. |
The magnetic moment of a field with current 12A and area 1.6 units is |
| A. | 19.2 |
| B. | 12.9 |
| C. | 21.9 |
| D. | 91.2 |
| Answer» B. 12.9 | |