All Questions
Tagged with magnet magnetic-flux
8 questions
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If I have two magnets repelling each other, will they always form a peak in the middle?
If I have two identical magnets, aligned so they repel each other a distance of X apart and at a height of Z I have Hall effect sensor, the peak of the magnetic field sensed will be at the distance X/...
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1
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Would a electromagnet be used to detect the presence of a permanent magnet?
I was wondering if there is any way I could use an electromagnet to detect the presence of a permanent magnet.
I am specifically thinking of using a planar type small coil. Maybe use a core or ...
- 31
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2
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Can a weak external magnetic field damage a magnetron?
I have a 40-year old microwave oven. I temporarily attached a magnetic flashlight to the side of it. Its 5/8"-diameter magnet is likely a neodymium magnet, strong enough to secure the 10-ounce ...
- 305
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Why are Halbach Arrays useful in PM motors?
I understand how Halbach arrays strengthen the magnetic field on one side of the array. I also know that, in a permanent magnet (PM) motor, there is already a limit on the air gap flux you can design ...
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Does a wider magnet mean less flux density?
I was using an online magnet strength calculator when I halved the diameter of the theoretical N52 magnet. The dimensions went from 32mm in diameter and 3mm thick, to 16mm in diameter and 3mm thick. ...
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2
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3
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399
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Why is the magnetic field around a bar magnet represented by iron filings?
Why would we use iron filings to display a magnetic field interaction and then teach this as the unaffected field of a magnet?
Iron affects the field itself. This is analogous to an observer ...
- 31
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882
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Can two magnets damage or interfere brushless motor?
I want to get the absolute position of motor shaft, so I have added two magnets on the metallic thread (which holds the motor) and some hall sensors on top of shaft.
Can the magnets in some way ...
- 65
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saturation point of electrical iron
In my work with electrical iron, I have done a lot of research to try to understand how to determine the quality of it. Is there a simple way to test for the saturation point? Some of the methods I ...
