i need to make a battery powered light bulb and i have copper wire at home...will it work?
You must use insulated wire.
Copper wire is rather orange in color. If it is insulated it will be surrounded by a coating of plastic for its entire length. If you cut it and then look at its end the copper wire should be in the middle with the insulation around it like a doughnut. Insulation can be of any color and is not always plastic. The copper wire itself can be either solid and made up of a single strand, or stranded and thus composed of numerous much smaller diameter strands. Stranded wire is more flexible and is the type used commonly for lamps, but sold copper wire, although stiffer, will work as well.
