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This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
1. |
Pick out the material that cannot be used to make permanent magnets. |
A. | Copper |
B. | Aluminum |
C. | Steel |
D. | Zinc |
Answer» E. | |
2. |
Soft iron is used in the cores of transformers. |
A. | True |
B. | False |
Answer» B. False | |
3. |
Pick out the temperature at which iron becomes paramagnetic? |
A. | 800 C |
B. | 700 C |
C. | 600 C |
D. | 500 C |
Answer» B. 700 C | |
4. |
Identify the expression for Curie s constant from the following. |
A. | <sub>m</sub> = C T |
B. | <sub>m</sub> = C 2T |
C. | <sub>m</sub> = ( frac {C}{T} ) |
D. | <sub>m</sub> = ( frac {C}{2T} ) |
Answer» D. <sub>m</sub> = ( frac {C}{2T} ) | |
5. |
Arrange the following in the increasing order of magnetic susceptibility. |
A. | Paramagnetic < Diamagnetic < Ferromagnetic |
B. | Paramagnetic < Ferromagnetic < Diamagnetic |
C. | Ferromagnetic < Paramagnetic < Diamagnetic |
D. | Diamagnetic < Paramagnetic < Ferromagnetic |
Answer» E. | |
6. |
Aluminum is a diamagnetic material. |
A. | True |
B. | False |
Answer» C. | |
7. |
Which among the following has a relative permeability much larger than 1? |
A. | Diamagnetic materials |
B. | Ferromagnetic materials |
C. | Paramagnetic materials |
D. | Ferrimagnetic materials |
Answer» C. Paramagnetic materials | |
8. |
Which one of the following, when suspended freely, slowly sets itself parallel to the direction of the magnetic field? |
A. | Ferromagnetic materials |
B. | Diamagnetic materials |
C. | Paramagnetic materials |
D. | Ferrimagnetic materials |
Answer» D. Ferrimagnetic materials | |
9. |
Which one of the following is feebly repelled by a magnet? |
A. | Diamagnetic materials |
B. | Paramagnetic materials |
C. | Ferromagnetic materials |
D. | Ferrimagetic materials |
Answer» B. Paramagnetic materials | |