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- Aluminum (or Aluminium) is a good thermal and electrical conductor, having 59% the conductivity of copper, both thermal and electrical, while having only 30% of copper's density.
- Aluminum is capable of being a superconductor, with a superconducting critical temperature of 1.2 Kelvin and a critical magnetic field of about 100 gauss (10 milliteslas).
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∙ 10y ago
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∙ 9y agoAluminum is a good conductor of both heat and electricity. Compared to copper with a conductivity of 100 percent, aluminum has 61 percent.
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∙ 15y agoThe electrical resistivity of aluminum at 20 °C is 26.50 nΩ·m. Notice the units are small (nano-ohms) because aluminum is a metal.
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∙ 6y agoThe electrical resistivity of aluminium at 20 oC is 28,2 nano ohm.m.
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∙ 11y ago0121 do1
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∙ 14y agoaluminium
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What is the specific resistance of copper and aluminum?
Copper is widely use in the US, it has the second lowest resistivity, behind silver, which is much more expensive making copper the best choice. It resistivity at 20 °C is 1.72×10−8
When a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of both?
Resistivity of silicon higher than that of germanium
Why aluminium resistant to corrosion?
A thin film of aluminium oxide forms when aluminium is exposed to air. This layer protects the rest of the aluminium from corrosion.
Which is the less reactive - aluminum or lithium?
Aluminium is much less reactive than Lithium.
How do you extract aluminium from Aluminium Oxide?
by using electrolysis
Which one of the following has the lowet resistivity -aluminium -copper -steel -lead?
Copper, aluminum, steel and lead in that order.
Can you name all the things you can use in the place of copper-wire?
Aluminium wire can be used because it has low resistivity
Is lead conductor?
Lead has high resistivity of current. So , lead is not conduct current. But lead has low resistivity of heat and it conduct heat..
Would aluminum on a simple electric motor work?
If you are referring to the use of aluminium windings, instead of copper windings, then the answer is yes. However, because aluminium has a higher resistivity than copper, to produce the same rating as a copper-wound machine, the aluminium conductor would require a slightly larger cross-sectional area, which means that that the machine would be somewhat larger.
What is the specific resistance of copper and aluminum?
Copper is widely use in the US, it has the second lowest resistivity, behind silver, which is much more expensive making copper the best choice. It resistivity at 20 °C is 1.72×10−8
What material allows electricity to pass through it easily?
Metals. Copper has one of the lowest resistivities. Resistivity is a measure of how easily electricity flows - the lower the better the electricity flows. Silver has an even lower resistivity but obviously it is more expensive. Aluminium is also good but it oxidises so would not be as good a conductor as copper which resists oxidation.
What is the resistivity of graphite?
The resistivity of graphite is 7.837 µΩm.
What is thermal resistivity of soils?
Resistivity is the opposite of conductivity. The thermal resistivity of soil is the degree to which soil impedes the flow of heat, or insulates against heat.
Do wires that have high resistivity have high conductivity also?
No. In fact it is the opposite. Conductivity is the reciprocal of resistivity so a high resistivity means low conductivity. peace.
What are the formulae of resistivity?
There is no 'formula' for resistivity. The resistivities of different conductors have been determined by experiment.
What change in resistivity if length is doubled?
Resistivity is a property of a substance, and doesn't depend on the dimensions of a sample. If the length of a conductor is doubled, then its resistance doubles but its resistivity doesn't change.
What is the value of resistivity of human skin?
The value of resistivity of human skin is 0.2 Ohm-meters
