Magnetic materials Definition and 17 Threads

Tetrataenite is one of the mineral phases found in meteoric iron. Various groups are attempting to synthesize on a commercial scale to replace REE-based magnets. https://en.wikipedia.org/wiki/Tetrataenite...

For my end-of-semester project, I was tasked to investigate an aspect of magnetism/magnetic materials, to do some literature review on the topic, and code a mathematical model and display my results graphically. I couldn't find anything I wanted to do, so I asked the professor to assign me a...

Hi, I have to check some questions answers for my homework (Problem 3.5 and 3.6). Please help me find this book solution manual.

I am putting together a hands on activity for ninth graders, which will include testing different materials to determine whether they are attracted to a magnet. I have collected fasteners (screws, nails, bolts), and surprised that the fasteners I purchased labeled "zinc" are attracted to the...

Homework Statement Consider a two-layered cylindrical wire with inner-layer permeability μ1 and outer-layer permeability μ2. A line current I runs through the center in the z direction. Calculate the bound currents and the magnetic field produced by the bound currents. Homework Equations [1]...

Assume there is a table with an infinite long wire passing through the centre and few iron pieces lying around the wire on the table. Now I pass current through the wire which creates electro magnetic field due to which all the iron particles get magnetic potential energy. They are attracted...

Odd question, would anybody know what would happen if a parallel plate capacitor (good conductor) had a soft magnetic material (fairly poor conductor) as a dielectric? What would be the DC/AC electrical characteristics of this?

Dear Friends Could anyone tell me whether we can stich (or) Join Magnets with Non Magnetic Materials? Is there any Possibilities? Thanks for Your Replies in Advance

Say you have a paramagnetic (or diamagnetic) sphere (or some other shape) and you apply a field of H = 10 Oe. Now, we have H=(1/\mu)B-M. That would indicate that outside of the material, B and H are essentially the same, right? B = 10 Gauss, outside of the material. But shouldn't the...

Hello, Imagine I have an infinite wire with a DC current. Around it there two rings of ferro-magnetic material, not far from each other. Does changing the mu_r of one of the first ring, changes the magnetic field in the second ring? - If I consider just Ampére law (macroscopic...

Hi and thanks for helping me with these physics questions. Firstly, will a magnetic field pass through non magnetic materials as though it was air? For example, will a magnet still attract another magnet when copper or wood is placed in between it? I understand that if the material in...

As far as I am aware, Rare Earths and particularly NdBFe is the strongest known magnetic material. Is this true and what is the strongest magnetic material known that it is in common use and what is possible theoretically? Thank you.

are superconductors dia magnetic materials?? if so, what are similarities between them??

Homework Statement today, my teacher asked us a question. he asked, have you ever wondered why materials are magnetic? why are some materials magnetic and some are not? are the magnetic materials specifically chosen to be magnetic or non magnetic? what makes them magnetic? and my class...

My sister has a question: thanks!

Hello all, I feel somewhat strange posting on this forum because I'm majoring in biology and we're supposed to be the enemies of physics, but I've come across a question that I can't seem to find an answer to; this is actually in regards to independent research. Does instantaneous or prolonged...

When the current in solenoid is turned off a steel core stays magnetized. The tiny atomic magnets remain lined up, even when the external field is removed. Why is that so?