Electromagnet Battery

[SilentSal]

Hey guys, I don't know too much about electricity behavior so I'll just pretend I don't have any.

...with that said:

Lets say I have an electromagnet and I want to feed it 1.25 amps. Could someone please explain what kind of small battery (think laptop battery or smaller) I would need to use, what voltage, and what resistance, if any, would be necessary to power the magnet for an hour or so.

Thanks guys. I'll appreciate if you all meet with my noobiness with compassion.

 

[john monks]

If your electromagnet resistance is also 1.0 ohm a regular alkaline D-cell should work just fine.

 

[CDRIVE]

Are you familiar with Ohms Law? Your coil resistance to produce 1.25A @ n voltage will be the same as a resistor. Your coil resistance will be relative to the wire guage and wire length. That said, I haven't done any electromagnet winding since 1959. Fortunately we have members that have more recent experience than that.

By the way, we're not compassionate with nubes. We attack and humiliate them with sadistic joy. ...Just kidding!