MCQOPTIONS
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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 | |