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Between iron, copper, and aluminum, copper is the best, followed by aluminum, and last by iron. Gold is often plated over other metals because it is even better and resists corrosion.
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Why is electrical cable made of copper?
Electrical cables are made from copper because it is a better conductor than aluminium, it is also cheaper. If you did use aluminium then;it may set fire.may oxidize after a while and over heat.I hope this helped! :D
Is Aluminum an element or mixture?
Aluminum is rarely used in it pure form in common sheet. There is usually at least some silicon and copper as additives to control certain properties of the metal "mixture".
What is an electrical wire made out of?
Usually copper, but can also be made of aluminum. Copper has a higher melting point and better resistance to corrosion, however is more expensive than aluminum (£1600/tonne)
What are the differences between copper and gold?
Gold has a gold color, is softer ( try scratching it in a unobtrusive place), and it is NOT magnetic. Copper is very hard, has a bronze color, and at least has a weak magnetic field. Copper is also less dense that gold and is a better conductor of heat and electricity. Copper will tarnish over time while gold will never tarnish.
How many types of aluminum in the world?
Aluminum is a chemical element, and in this sense of the word, there is only one type of aluminum in the natural world, because only one isotope of aluminum occurs naturally. However, among non-chemists, the word "aluminum" is often used to mean "any alloy in which aluminum is a predominant constituent, and there are at least dozens of those in commercial use.
What affects the resistance of a conductor?
The length and the material that the conductor is made from. Different wire sizes have different ohm/foot. The longer the length of the conductor the higher the ohms/foot. Temperature also affects the resistance. Silver has the least resistance, followed by Copper, then Gold, then Aluminum. Here are some published resistances in micro ohm-cm: Silver - 1.6 Copper - 1.7 Gold - 2.2 Aluminum - 2.7
What are the types of conductor?
ANSWER:From least dense to most dense, Water, Aluminum, Zinc, Iron, Copper, Silver, Lead, Mercury, Gold. See the related link for more information.BY: Justin Chance :)
Why is electrical cable made of copper?
Electrical cables are made from copper because it is a better conductor than aluminium, it is also cheaper. If you did use aluminium then;it may set fire.may oxidize after a while and over heat.I hope this helped! :D
If copper is a better conductor of electricity does that mean that it has less resistance?
Yes, the best conductors have the least resistance.
What is the path that an electrical current travels?
electric current
Why is cable not made at least resistance possible?
While it would be nice if we had cable that had no resistance at all, the only materials that have no resistance are superconductors, and they only work at really, really, really low temperatures. There are some special applications where superconductors are used, but it is largly impracticle because of the cost of making the cable and of keeping it cold. We have a zillion miles of cable in the power grid and the wiring of structures. Most of it is copper. But copper is too heavy and of insufficient strength to use on the big high tension cross country cables hanging from those big towers. Also, aluminum is used in a lot of applications because it is cheaper than copper, though it isn't quite a good a conductor. If we use a slightly larger aluminum wire than the size of the correct size copper wire for a given application, the resistance of that bigger aluminum conductor will be about the same per foot as the smaller copper conductor. Copper is about the best we can do to make a conducting cable that is going to work at ambient temperature. Lastly, there aren't a lot of choices between good old copper and superconductors.
Why alumium does not conduct electricity?
Special care must be taken to properly maintain aluminum connections. Generally, aluminum connections are retightened at least once a year. Because this is not practical in homes, aluminum is no longer allowed for home wiring. It is largely true that most homes built with aluminum no longer exist . . . because they burned down!
What kind of marterials have low resistance?
the best conductors with low resistance are silver, copper, gold, aluminum (best to least best)
Is Aluminum an element or mixture?
Aluminum is rarely used in it pure form in common sheet. There is usually at least some silicon and copper as additives to control certain properties of the metal "mixture".
Why copper wires are used in households wiring?
Copper wire is fairly inexpensive, and has a good conductivity. Aluminum wire is cheaper and lighter, but it is not as good a conductor as copper, plus it expands and contracts so much that it can loosen screw terminals causing fire hazards. <><><> Copper is the second best common conductor (silver is the best), it is flexible, easy to work with (as wire), easily mined, and most important, it is cheap (at least compared to silver). It is pretty much perfect for most kinds of electrical wiring. (For homes, cars, machinery, etc.) <><><> Copper is a very good conductor of electricity and is much cheaper than gold or silver which are better electrical conductors. That is, they can carry a higher electrical current without overheating. Copper is ductile and malleable making it easy to draw into very fine wires. It can be endlessly recycled with little loss due to oxidation.
Is aluminum cans element compound or a mixture?
Aluminum is rarely used in it pure form in common sheet. There is usually at least some silicon and copper as additives to control certain properties of the metal "mixture".
What size and type of wire is used for ground in 200 amp service?
Minimum size grounding conductor for a 200 amp service entrance is #6 bare copper. The conductor connected to a metal water pipe, or whatever your primary grounding electrode is, is required to be #4 copper. This size requirement is often missed. The conductor connected to a ground rod is only required to be #6 regardless of the size of service. Typical installation is #6 bare solid copper.
