Discussion
Consider the following statements about magnetic materials.
1. A ferromagnetic material becomes paramagnetic above its Curie point 2. A ferrite has high resistivity 3. A diamagnetic material has relative permeability above unity
Answer: B
The first two are correct and both matter in practice. A diamagnetic material has a relative permeability just below one, since its susceptibility is small and negative, which is what makes it faintly repelled from a field.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development