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This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
After demagnetization of a magnetic material, the residual magnetization retained in the magnetic material is called: |
A. | Remanence |
B. | Residue |
C. | Retardation |
D. | None of the mentioned |
Answer» B. Residue | |
2. |
The operating point of a permanent magnet is in the: |
A. | First quadrant |
B. | Second quadrant |
C. | Third quadrant |
D. | Fourth quadrant |
Answer» C. Third quadrant | |
3. |
A permanent magnet is made by placing the magnetic material in a strong magnetic field. |
A. | True |
B. | False |
Answer» B. False | |
4. |
Lande’s factor for all ferromagnetic materials is in the range of 0 to 1. |
A. | True |
B. | False |
Answer» C. | |
5. |
AFTER_DEMAGNETIZATION_OF_A_MAGNETIC_MATERIAL,_THE_RESIDUAL_MAGNETIZATION_RETAINED_IN_THE_MAGNETIC_MATERIAL_IS_CALLED:?$ |
A. | Remanence |
B. | Residue |
C. | Retardation |
D. | None of the mentioned |
Answer» B. Residue | |
6. |
The operating point of a permanent magnet is in the? |
A. | First quadrant |
B. | Second quadrant |
C. | Third quadrant |
D. | Fourth quadrant |
Answer» C. Third quadrant | |
7. |
A permanent magnet is made by placing the magnetic material in a strong magnetic field? |
A. | True |
B. | False |
Answer» B. False | |
8. |
The variation of magnetic moment of a ferromagnetic material with applied bias field is linear. |
A. | True |
B. | False |
Answer» C. | |
9. |
Lande’s factor for all ferromagnetic materials is in the range of 0 to 1.$ |
A. | True |
B. | False |
Answer» C. | |
10. |
___________ is a measure of the relative contributions of the orbital moment and the spin moment to the total magnetic moment. |
A. | Lande’s factor |
B. | Gibbs factor |
C. | Newton’s ratio |
D. | None of the mentioned |
Answer» B. Gibbs factor | |
11. |
The magnetic properties of a material are due to the existence of ___________ |
A. | Electrons in atoms |
B. | Electric dipole moment |
C. | Magnetic dipole moment |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
12. |
This is not an example of anisotropic material: |
A. | Yttrium aluminum garnet |
B. | Aluminum |
C. | Cobalt |
D. | Silicon |
Answer» E. | |
13. |
A microwave network can be called non reciprocal only if it contains anisotropic materials like ferrite materials. |
A. | True |
B. | False |
Answer» C. | |
14. |
Example of a non reciprocal device: |
A. | Branch line coupler |
B. | Wilkinson coupler |
C. | Magic-T hybrid |
D. | Circulator |
Answer» E. | |