MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the number of atoms in the domain in ferromagnetic iron, in the form of a cube of side length 1μm, is 8.65 X 1010 atoms and dipole moment of each iron atom is 9.27 X 10-24 Am2, what is the maximum Magnetization of the domain? |
| A. | 6 X 105 A/m |
| B. | 7 X 105 A/m |
| C. | 8 X 105 A/m |
| D. | 9 X 105 A/m |
| Answer» D. 9 X 105 A/m | |
| 2. |
What does the following curve show? |
| A. | Magnetization curve |
| B. | Hysteresis curve |
| C. | Polarizing curve |
| D. | Coercive Curve |
| Answer» C. Polarizing curve | |
| 3. |
Curie’s law is applicable at every point on a Paramagnetic Material. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Which of the following is the correct expression for Curie’s law? |
| A. | χ = Cμ0T |
| B. | χ = Cμ0/T |
| C. | μ0 = C χ T |
| D. | μ0 = C χ /T |
| Answer» C. μ0 = C χ T | |
| 5. |
If a material is ferromagnetic, what shall be the value of χ? |
| A. | Negative |
| B. | Small and positive |
| C. | Large and Positive |
| D. | Insufficient information |
| Answer» D. Insufficient information | |