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Is the Reactance of aluminum conductors the same of copper conductors?
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Can copper and alluminium wire of same length and diameter have same resistance?
For a single temperature, yes. The copper wire will have a much smaller cross-section than the iron wire. For multiple temperatures, no. Copper and iron have different temperature coefficients for resistivity.
Will a copper or steel wire of the same length and thickness allow more current to pass through?
Copper is the better conductor. The only materials that are better conductors than copper are either very expensive (such as gold and silver), or superconductors that only work at cryogenic (supercold) temperatures.
Why are silver coins not magnetic?
For the same reason that copper pipes and aluminum foil are not magnetic - silver is not a ferrous metal and has only very weak magnetic properties.
Which is the metal that is best conductor of heat and electricity?
Silver is the best metal which is the conductor of electricity and heat. Silver is the best electricity conducting element, but not the best heat conductor. Carbon(Diamond) and Helium(Helium II state) are even better conductors of heat.
What is the same about a copper penny and a copper kettle?
Same density
Why are aluminium and copper used for making electric wires?
Copper and aluminum are good conductors. Other conductors like silver aren't used to make electric wires because copper and aluminum are cheaper but have the same properties.
Can you change from aluminum wire to copper wire in a new oven?
Copper is preferable to aluminum and the size of wire should be the same or the next size down if copper is used.
Compare conductivity of iron copper and aluminum in terms of electricity.?
When compared by volume, copper is best, then aluminum and finally iron. When compared by weight, aluminum is better than copper. You have to compare by volume because aluminum is so much lighter than copper, an aluminum wire that weighed the same as a copper wire would be much bigger and harder to work with.
What is the aluminum wire equivalent to?
In the electrical trade aluminum wire is equivalent to copper wire as it is also used to carry current. To carry the same current as copper wire aluminum wire is up sized to meet the same ampacity.
What are the advantages of using copper compared to aluminium for transmission lines?
Copper is a better conductor than aluminum. Two wires with the same cross-sectional area, or any two constructs with the same physical shape and size, one fabricated from aluminum and the other from copper, the one made of aluminum always has higher ohmic resistance.
The unit of measure of inductive reactance?
The unit of measurement for inductive reactance (XL) is the ohm.
What mass of copper contains the same number of atoms as 68.7 g of iron?
63.55g or 63.55 grams
Why is one mole of aluminum larger than one mole of copper?
It isn't. The mass of one mole of aluminum is less than the mass of one mole of copper. The number of atoms in one mole of aluminum is the same as the number of atoms in one mole of copper, which is 6.022 x 1023, also known as Avogodro's number.
What metals are conductors of electricity but are not magnetic?
ALL metals DO conduct electricity. The best conductors are gold, platinum, mercury and copper. The poorest conductor is probably lead. You can find their conductivity values from standard tables. Also don't forget that electrical conductivity is not the same a thermal(heat) conductivity.
Booster cables - what is the difference in use between copper cald aluminum and 100 copper wire?
It depends on some factors which are not mentioned in the question. The main difference between 100% copper wire and copper clad aluminum is that IF they are the same diameter, then the copper will carry and stand up to more electrical current than the aluminum. If the diameter of the aluminum cables have been upgraded in size, to match the current carrying capacity of the normal copper cables, then the only remaining difference is that copper withstands much more bending and coiling beforethe metal begins to "work harden," and some of the individual wire strands begin to break. In other words, the copper stands up to use better than aluminum. When buying booster cables, read the lables, and make sure that the maximum number of Amps, for which the aluminum cables are capable of carrying, is equal to or greater than the highest rated copper cables. Therefore, IF the copper clad aluminum cables are rated for the same current carrying capacity as copper cables, then there is NO difference in use between the two types.
Why is aluminum used for cables?
High electrical conductivity: Aluminum has very high electrical conductivity. So it is good for making electrical cables.High ductility: Its ductility is very high which makes it perfect for drawing large aluminum cables.Light weight: Aluminum weighs about one third of copper, nickel, brass, and steel. Its specific gravity is 2.7. So the aluminum cables are very light weight, hence suitable for long distance cabling. They are also useful in overhead cabling.High resistance to corrosion: Aluminum is resistant to corrosion which makes it a good choice for manufacturing underwater cables.High strength: The high strength of aluminum prevent it from creeping even under high load. However, on overhead transmission lines it is sometimes strengthened with steel.Economical: Aluminum is one of the most economical elements and hence the aluminum cables are cheaper than copper, their nearest competitor.Physical properties: Aluminum is silvery white metal and highly reflective to heat and light. It is easily machinable and can have various surface finishes. It is easily recyclable.Non magnetic: Aluminum is non-magnetic in nature which is an important property for making armors and raceways.usually metals are good conductors of heat and electricity.aluminium,being a metal,can be used for making electric wires.
Why is aluminum used for the electricity cables of the national grid instead of copper?
Aluminum actually is used to carry electricity, but only in applications where the problems it presents can be overcome and reliability assured. Aluminum has some issues with the "joints" or connections made to it. It has a high rate of thermal expansion, so in applications where temperatures fluxuate widely and/or frequently, it may present problems. It is a pretty good conductor of electricity, and it is attractive because it is cheaper than copper, but issues with thermal expansion and also with oxidation at connections have lead to arcs and the disruption of service - and to fires.
