MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
As the temperature increases beyond the Curie temperature, the relative susceptibility of ferromagnetic materials? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Becomes zero |
| Answer» C. Remains constant | |
| 2. |
Paramagnetic substances have relative permeability_____________ |
| A. | Greater than 1 |
| B. | Less than 1 |
| C. | Equal to 1 |
| D. | Zero |
| Answer» B. Less than 1 | |
| 3. |
A substance whose relative permeability is more than the permeability of free space is? |
| A. | Diamagnetic |
| B. | Paramagnetic |
| C. | Ferromagnetic |
| D. | Both paramagnetic and ferromagnetic |
| Answer» E. | |
| 4. |
As the temperature increases up to the Curie temperature, the relative susceptibility of ferromagnetic materials? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Becomes zero |
| Answer» B. Decreases | |
| 5. |
Diamagnetic substances have relative permeability_____________ |
| A. | Greater than 1 |
| B. | Less than 1 |
| C. | Equal to 1 |
| D. | Zero |
| Answer» C. Equal to 1 | |
| 6. |
A substance whose relative permeability is less than the permeability of free space is? |
| A. | Diamagnetic |
| B. | Paramagnetic |
| C. | Ferromagnetic |
| D. | Not a magnetic substance |
| Answer» B. Paramagnetic | |
| 7. |
Which of the following expressions is correct with respect to relative permeability? |
| A. | B=‚à´r‚à´0/H |
| B. | B=‚à´r‚à´0H |
| C. | B=‚à´r/‚à´0H |
| D. | B=‚à´r‚à´0/H<sup>2</sup> |
| Answer» C. B=‚Äö√Ñ√∂‚àö‚Ƭ¨¬•r/‚Äö√Ñ√∂‚àö‚Ƭ¨¬•0H | |
| 8. |
What is the unit for relative permeability? |
| A. | H-m |
| B. | H/m |
| C. | H<sup>2</sup>/m |
| D. | No unit |
| Answer» E. | |