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/sci/ - Science & Math

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3972407 No.3972407 [Reply] [Original]

If I were to want to maximize a home-made electromagnet, I would want higher voltage instead of higher current, yes?

And what would be the best way to make a direct current into alternating current?

>> No.3972427

The best way to turn direct current into alternating current is an inverter.

>> No.3972440
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3972440

>>3972427

Which would be home-made how?

>> No.3972446

>>3972440
Oh, you're looking for >>>/diy/

I only vaguely know how to make AC to DC. Lolbridgerectifiers

>> No.3972530
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3972530

>>3972446

Meh, I suppose so. But my other question still stands: Current or voltage?

>> No.3972541

>>3972530
What are you trying to do with the electromagnet?

>(this is just a glorified bump, really)

>> No.3972565
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3972565

>>3972541

Shits 'n' giggles.

>> No.3972578

current*number of winds for an electromagnetic coil.

>> No.3972583

>>3972565
Did some reading around. The strength of the magnet is proportional to the amount of current passed through the coil, but it hs an upper limit based on the properties of the core.

>> No.3972677

For a powerful electromagnet you want lots of DC current. The coils should have low resistance so not much voltage is required (unless you need to turn in on and off very quickly).

The most important thing if to get a soft iron yoke (low carbon steel). This will make the field much stronger. It is possible to get fields above 1 Tesla (which is pretty strong).