Very few things are 100%
You can find copper wire with 99.999% purity commercially.
The purity of copper is expressed as 4N for 99.99% pure or 7N for 99.99999% pure. The numeral gives the number of nines after the decimal point when expressed as a decimal (e.g. 4N means 0.9999, or 99.99%).
Much electrical wiring is not more than 99,9% copper.
Very small amounts (some tens or a few hundred parts per million) of impurities have a rather large effect on the electrical conductivity of copper. Oxygen is intentionally alloyed into copper to scavenge sulphur and hydrogen which have various unwanted mechanical and electrical effects on the finished product.
Copper wire is pure copper (purity greater than 99,90 %).
Copper is an element, so it may be pure, but copper may be mixed with other metals, or it may combine chemically with oxygen, and in either case it would not be pure.
Copper wire is not an alloy; the purity of Cu is higher than 99,9 %.
It should be a "pure" substance, but its really an alloy.
pure substance
It should be a "pure" substance, but its really an alloy.
copper is an element. but copper wire is a processed element.
copper wire that is coated with tin
It should be a "pure" substance, but its really an alloy.
If the copper wire really is pure copper then the only element in the copper wire is copper (Cu).
copper is an ELEMENT therefore it is not a heterogeneous OR homogeneous mixture.
pure substance
The more pure the better. Pure copper.
No. Copper used in wiring would not qualify as laboratory-grade (pure). It would be far too expensive to manufacture and would not improve the conductivity enough to make a difference. Some copper wire is even plated. Laboratory-grade (pure) copper is a single substance, the element copper.
It should be a "pure" substance, but its really an alloy.
First off, not all electrical wiring is copper. There's a fair bit of aluminium wiring being used too, as well as some other alloys. "Pure" is a difficult word. You can have copper that is purer than what's used for electrical wiring. But outside a lab setting, copper wire is indeed pretty darn pure.
Copper. The wire is made of elemntal copper not a chemical compound. (Note the copper used may sometimes be alloyed with another metal or occasionally be a solid solution of small amounts of oxide in the pure metal. This improves the durability and handling characteristics of the wire.)
Copper used in wiring would not qualify as laboratory-grade (pure). It would be too expensive to manufacture.
Overcoat: Individual strands of tin copper stranded together & then covered with a tin coating. Topcoat: Bare (untinned) copper wire, stranded, then coated with pure tin.
Most transformers have coils made of pure copper. This copper is really pure, and it is not an alloy.Certainly we know of situations where other materials are used to wind the cores of transformers. In superconcuctive matnets, the coils are alloys or composite materials that have specific superconductive properties. And don't forget the coils in the calutrons used at Oak Ridge National Laboratory to enhance uranium diring World War 2. They were made of silver that was borrowed by the ton from reserves at Fort Knox!By and large, most transformers we encounter will be wound with pure copper wire. It might be worth noting that recycled copper is not generally used to make copper wire as it is not pure enough. Virgin copper is generally the best choice for electrical wire, and recycled copper works very well for copper pipes and copper tubing.