1. Heavy, 2. Expensive, 3. Resistance.
Copper wire is ideal for electromagnets because it conducts electricity efficiently and has low resistance. Insulated copper wire also allows the coil to carry current safely without short-circuiting between turns.
how much copper is in copper wire
No. Copper wire is a solid
No, copper wire is not magnetic.
Copper wire sent for recycling is remelted and rerefined. It becomes a new copper product one of which might be new copper wire.
Copper or aluminum wires.
Battery/iron rod/copper wire.
If you mean a bare copper wire, that is the "ground" wire.
Yes, if it is not an insulated wire. If it is bare copper it is always ground. But the hot and neutral wire are also copper, they are just insulated.
To refine copper wire scrap, you need professional tools and equipment such as copper stripper which is used for removing insulation from copper wire.
Iron, copper wire and dry cell batteries
High resistance in a copper wire can be caused by factors like a longer wire length, a thinner wire diameter, and the material's high temperature, which increases resistance due to increased collisions among electrons.