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Hi everyone . I would like to understand if it is possible to create an electromagnet in an iron-silicon alloy (FeSi). I don't have the equipment to do it myself so I thought of two different ways to proceed but I'm not an expert in these things and therefore I can't know if they are two viable...

Hi everyone. can you advise me please? I am looking for a solid material without hysteresis with a relative magnetic permeability that goes beyond unity. I don't pretend that it is on par with permalloy or mu-metal but I can be satisfied with a value that is close to 10, if it surpasses it even...

Hi everyone . I want to make an alternating current sensor for audio frequencies (20Hz-20KHz) for current starting from 50mA. many very small toroidal plastic nuclei (therefore air permeability) placed next to each other to form a straight line because the current conductor passes through the...

Hi everyone . Can you clarify something for me? if a current flows in a linear copper wire, a magnetic field is created arranged on a plane orthogonal to the conductor of electric current. if instead of a full section copper wire I use a copper or aluminum tube, is there a magnetic field inside...

Hi everyone . to understand what it is I thought the best thing is to attach a link . in link 502574 it says what I want to do. https://www.eng-tips.com/viewthread.cfm?qid=504815 if, on the other hand, you don't want to read, I'll explain briefly and in simple terms that it is a direct current...

Hi everyone . I would like to know the feasibility of building a field coil speaker. I talked about it in these links: https://www.eng-tips.com/viewthread.cfm?qid=502574 https://www.eng-tips.com/viewthread.cfm?qid=504490 https://www.eng-tips.com/viewthread.cfm?qid=504785 I ask you this question...

HI . Can you clarify the following for me please? . what happens to the magnetic field that passes through two different metals placed in contact with each other?. if I use one of the two metals as an electromagnet, wrapped in a coil of copper wire, having a magnetic saturation higher than the...

where can you find the technical data concerning the magnetic properties of all the low carbon steels available on the market?.

Hi everyone. there are materials called soft magnetic and they are halfway between a permanent magnet and a ferromagnetic material. I would like to try to make a field coil loudspeaker where the maximum amount of flux-density is very important but also the amount of current it takes to create...