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The depth of penetration or skin depth for an electromagnetic field of frequency f in a conductor of resistivity r and permeability m is?
Wiki User
∙ 12y ago
directly proportional to r and inversely proportional to f and m
Wiki User
∙ 12y ago
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If A conductor has a resistance of 0.8 ohms what will happen to its resistance if the temperature is decreased?
The resistance of a conductor is directly proportional to the resistivity of the conductor. since the resistivity of a conductor is decreases with decrease in temperature hence the resistance.
Is resistivity of a good conductor high or low?
It is Low
Is resistivity of conductor independent of charge?
Essentially yes.
What is the Difference between reluctance and resistivity?
Resistivity is the intrinsic property of a conductor, and it is independent of the size of that conductor. Resistance is an extrinsic property that makes it dependent upon the amount of the material that there is present.
Does plutonium is a conductor?
The electrical resistivity of plutonium is 150.108 ohm.m; plutonium, as a metal, is a conductor but not good.
How are substances classified on the basis of resistivity?
conductor,semiconductor and insulator
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.
Is lead a good conductor of electricity in all the states?
The resistivity of lead is 208 n.Ohm.m (at 20 degrees celsius) in comparison, the best conducter, silver, has a resistivity of 15,87 n.Ohm.m widely used conducter, copper, has a resistivity of 16,78 n.Ohm.m , considered to be a good conductor resistivity of iron, considered not to be the a good conductor at all is 97 n.Ohm.m So no, lead is not a good conducter. But keep in mind, it's still a conductor, don't use it as an isolation!
Why is copper wire the best known conductor?
The best electrical conductor known is silver, not copper. Electrical resistivity of silver: 1,59.10-8 ohm.m Electrical resistivity of copper: 1,68.10-8 ohm.m A good electrical conductor has a very low electrical resistivity and a high electrical conductivity (the same principles for the thermal conductivity).
What is resistivity of material?
the electrical resistance of a conductor through unit cross-sectional area per length is called "resistivity of material"
What type of conductor is promethium?
The electrical resistivity of promethium is 0,75 microohm.meter.
Is it true that a material with high resistivity is a good conductor?
No. It is not true. It is false.
