building an electro magnet

Trippl7777

This might be too simple of a question but i am building an electro magnet and breaking down all of the components for sheer practice. when i measure my coils resistance it came to roughly between .9Ω and 1.3Ω... what battery (what voltage should i use to get the most power from my magnet and does it matter if it is going to be used in pulses like a relay?

*Dickfore*

It's spelled "ohms". And, your question doesn't make sense. For example, take a battery with a voltage 1 MV (megavolt).

Trippl7777

I'm sorry spelling isnt my strong point. What i'm trying to ask is how strong of a battery can i use before I run into a problem (such as Arking and/or flash welding) because of too much current.

*Dickfore*

Take a look at this table of wire gauges and current rating:
Wire Size
and see what the max current the wire in your coil can support is.

Trippl7777

Ok but my friend warned me that with the amount of rotations around the iron core i have could possibly just drain my battery. would it be better to get a power supple like a AC/DC converter from a wall outlet instead of a regular battery?

Thanks again and sorry for how little i know about physics.

Drakkith

Make sure to control the current flowing through the circuit in some way. Just attaching a coil to a battery may result in a destroyed battery due to very high currents. Add some resistors or something. (Or use a current limiting power supply)

Do you know much about electricity or circuits? And especially Ohms law?

Trippl7777	building an electro magnet Tweet This might be too simple of a question but i am building an electro magnet and breaking down all of the components for sheer practice. when i measure my coils resistance it came to roughly between .9Ω and 1.3Ω... what battery (what voltage should i use to get the most power from my magnet and does it matter if it is going to be used in pulses like a relay?

Dickfore	It's spelled "ohms". And, your question doesn't make sense. For example, take a battery with a voltage 1 MV (megavolt).

Dickfore	building an electro magnet Take a look at this table of wire gauges and current rating: Wire Size and see what the max current the wire in your coil can support is.

Drakkith Recognitions: Gold Member	Make sure to control the current flowing through the circuit in some way. Just attaching a coil to a battery may result in a destroyed battery due to very high currents. Add some resistors or something. (Or use a current limiting power supply) Do you know much about electricity or circuits? And especially Ohms law?