What is the resistivity of aluminum?

Aluminum is lighter than copper. Aluminum has a resistivity varying from 2.65 to 2.82 × 108 Ω · m. Combined with it's light weight and alloyed with some other metals to make it stronger, aluminum is ideal for electrical cables.
A.

Which metals have the lowest resistivity?

Electrical or thermal condutivity, resistivity, density and melting point
TIBTECHElectrical conductivity (10.E6 Siemens/m)Electrical resistivity (10.E-8 Ohm.m)
Silver62,11,6
copper58,51,7
Gold44,22,3
Aluminium36,92,7
  • What is Rho resistivity?

    A low resistivity indicates a material that readily allows the flow of electric current. Resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is the ohm-metre (Ω⋅m).
  • Which metal is the best conductor of electricity?

    Silver
  • What does the resistivity of a material depend on?

    The resistivity of a material is the resistance of a wire of that material of unit length and unit cross-sectional area. The unit for resistivity is the ohm-metre. The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size.
B.

What is resistivity of a material?

The electrical resistivity of a material is also known as its specific electrical resistance. It is a measure of how strongly a material opposes the flow of electric current. A definition of resistivity is the electrical resistance per unit length and per unit of cross-sectional area.
  • What is the ohm?

    The ohm is defined as an electrical resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, produces in the conductor a current of one ampere, the conductor not being the seat of any electromotive force.
  • What is resistivity Class 10?

    The resistivity of a material is the resistance of a wire of that material of unit length and unit cross-sectional area. The unit for resistivity is the ohm-metre. The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size.
  • What is the resistivity of copper wire?

    Resistivity and Temperature Coefficient at 20 C
    MaterialResistivity ρ (ohm m)
    Silver1.59x10-8
    Copper1.68x10-8
    Copper, annealed1.72x10-8
    Aluminum2.65x10-8
C.

What is the resistance of gold?

As the graph shows, the resistivity of a substance is very much dependent on temperature. For most conductors, resistivity increases with rising temperature. At 20 °C, the resistivity of gold is approximately 2.44 × 108 ohm-m and steadily rises with increasing temperature.
  • What does the resistivity of a material depend on?

    The resistivity of a material is the resistance of a wire of that material of unit length and unit cross-sectional area. The unit for resistivity is the ohm-metre. The resistivity of a material depends on its nature and the temperature of the conductor, but not on its shape and size.
  • What is the specific resistance of gold?

    As the graph shows, the resistivity of a substance is very much dependent on temperature. For most conductors, resistivity increases with rising temperature. At 20 °C, the resistivity of gold is approximately 2.44 × 108 ohm-m and steadily rises with increasing temperature.
  • Why Copper is a good conductor of electricity?

    The electrons can move freely through the metal. For this reason, they are known as free electrons. They are also known as conduction electrons, because they help copper to be a good conductor of heat and electricity.

Updated: 16th October 2019

Rate This Answer

4 / 5 based on 1 vote.