Which Of The Following Has Highest Resistivity? - Fixanswer

The most extensively used high working temperature resistance materials are

alloys of nickel, chromium and iron called Nichrome

and alloys of aluminium, iron and chromium.

What has higher resistivity?

Insulators

have a high resistivity. The resistivity of semiconductors lies between conductors and insulators. Gold is a good conductor of electricity and so it has low resistivity. The glass is a good insulator which does not allow the flow of electrons.

Which has the highest electrical resistivity?

The material that has the highest electrical resistance is

silver

. After silver copper and gold are the materials that have the highest electrical resistance.

What is the resistivity formula?

Resistivity, commonly symbolized by the Greek letter rho, ρ, is quantitatively equal to the resistance R of a specimen such as a wire, multiplied by its cross-sectional area A, and divided by its length l;

ρ = RA/l

. The unit of resistance is the ohm.

Which material has the highest resistivity Brainly?

Answer:

Nichrome (metal)

has the highest resistivity.

Does resistivity depend on temperature?

Resistivity depends on

the temperature of the material

. … In metal conductors, when the temperature increases, the ion cores in the metal vibrate with a larger amplitude. This hinders the flow of electrons, and the resistivity increases.

Does resistivity increase with temperature?

The general rule is resistivity increases with

increasing temperature in conductors

and decreases with increasing temperature in insulators. … Thus when temperature goes up, resistance goes up. For some materials, resistivity is a linear function of temperature.

Is resistivity the same as resistance?

The resistivity is a characteristic of the material used to fabricate a wire or other electrical component, whereas the

resistance

is a characteristic of the wire or component.

Which of the following has less resistivity?

Element silver

has lowest resistivity and hence has higher conductivity. Resistivity – Resistivity is equal to the resistance of a given conductor having a unit volume.

Who is the best conductor of electricity?

Silver. The best conductor of electricity is pure silver, but to no surprise, it is not one of the most commonly used metals to conduct electricity. …
Copper. One of the most commonly used metals to conduct electricity is copper. …
Aluminum.

What is the resistivity of germanium?

Material Resistivity ρ (ohm m)	Nichrome (Ni,Fe,Cr alloy) 100 x10 ^{– 8}	Constantan 49 x10 ^{– 8}	Carbon* (graphite) 3-60 x10 ^{– 5}	Germanium* 1-500 x10 ^{– 3}

What is resistivity example?

For example, the resistivity

of copper

is generally given as: 1.72 x 10
^{– 8}
Ωm. The resistivity of a particular material is measured in units of Ohm-Metres (Ωm) which is also affected by temperature. … Conductivity, σ is the reciprocal of the resistivity. That is 1/ρ and has the unit of siemens per metre, S/m.

What is resistivity of any solution?

Resistivity of any solution : When current flow in the solution through two electrodes resistance is proportional to length and inversely proportional to cross sectional area A. The constant p(rho) is called resistivity or specific resistance. Thus, Resistivity of any solution is

the resistance of one cm cube

.

What is resistivity in simple words?

Resistivity is

a measure of the resistance of a given size of a specific material to electrical conduction

. … Materials that conduct electrical current easily are called conductors and have a low resistivity. Those that do not conduct electricity easily are called insulators and these materials have a high resistivity.

Which material has the highest thermal conductivity?

Along with its carbon cousins graphite and graphene,

diamond

is the best thermal conductor around room temperature, having thermal conductivity of more than 2,000 watts per meter per Kelvin, which is five times higher than the best metals such as copper.