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/sci/ - Science & Math

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2900179 No.2900179 [Reply] [Original]

I have a wire coil whose ends are attached to an ampmeter. I move a magnet in and out of this coil in a rhythmic manner to produce electricity.

2 questions:
1. What sort of material must the wire be made out of (copper, magnetic wire, or ferrous metal?)
2. What sort of current will I need to set the ampmeter to measure (AC, DC, battery, etc.)

>> No.2900205

The wire just needs to be capable of carrying an electric current. It does not need to be magnetic.

And if you move the magnet back and forth, the current will essentially move back and forth as well, which is technically an alternating current. It would be a very slow alternating current, however, if you're moving the magnet manually.

>> No.2900226

>>2900179
1. Any metal I suggest insulated though because if the loops are touching it will mess it up if it isn't insulated.
2. AC

>> No.2900242

>>2900205
I kept trying it with a 20 gauge copper wire and wasn't getting any results. Could it be that a small magnet wouldn't even generate enough current to register on the ampmeter?
This thing's getting pretty damn frustrating

>> No.2900266

>>2900242

Like the other guy said, make sure your wires are insulated. Otherwise you'll have a short circuit in a tight coil.

Maybe you could try setting up the ampmeter to read direct current. The alternating current setting is probably for very rapidly alternating currents, like the kind used to power appliances.

Just be aware that you'll get a positive current, then a negative current, and so on. Does your ampmeter measure negative current? Is the display digital or analog? Just curious.