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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.
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What is the difference between resistance and the resistivity?
Resistance is the value of a given wire in ohm but resistivity is value of the material with which that wire is made in ohm meter. R = rho * L / A Here rho is resistivity and R is resistance. L is the length of the wire and A is area of cross section
Why do the values of resistivity differ so much between materials?
Resistivity varies because valence electrons vary, along with the lattice structure of the material.
What is the difference between a conductor and a resistor?
A conductor is a material that conducts electricity through it. Resistors main job is to oppose the flow of electrons through a conducting material. Resistivity can be understood in detail with the help of Ohm's Law.
What is meant by Reluctance Torque?
hat is meant by Reluctance Torque
What would be the effect of a change in temperature on the resistivity?
A change in temperature generally increases the resistivity of most materials. This is because as temperature rises, the atoms in the material start to vibrate more vigorously, causing more collisions between electrons and atoms. These collisions impede the flow of electrons, resulting in an increase in resistivity. Conversely, at lower temperatures, resistivity tends to decrease due to reduced atomic vibrations and fewer collisions.
What is the difference between metal and semiconductor?
A semiconductor's resistivity decreases with increasing temperature. A metal's resistivity increases with increasing temperature.
What is the difference between resistance and the resistivity?
Resistance is the value of a given wire in ohm but resistivity is value of the material with which that wire is made in ohm meter. R = rho * L / A Here rho is resistivity and R is resistance. L is the length of the wire and A is area of cross section
Why do the values of resistivity differ so much between materials?
Resistivity varies because valence electrons vary, along with the lattice structure of the material.
What is the relationship between resistivity and circumference?
The relationship between resistivity and circumference is inverse.The resistance of a substance decreases as the surface area of that substance increases. The greater circumference presents a greater conduction surface.AnswerThe original answer describes resistance, NOT resistivity. Additionally, it is incorrect because resistance is inversely-proportional to cross-sectional area NOT circumference!There is NO relationship between resistivity and the circumference of a material. Resisitivity is a constant at any given temperature and is completely unaffected by the dimensions of a material.
What is the difference between resistance and reluctance?
Better nuances are doubtless available via the Oxford English Dictionary, and in some cases of common usage they're probably almost interchangeable. But there is a real difference. I'd say resistance is more active and reluctance is more passive; i.e., in the case of resistance one is more likely to take some sort of action to register the desire not to do what's being asked; in the case of reluctance one may exhibit "symptoms" of not wanting to do what's being asked, or even express one's unwillingness verbally, but implicit in the word "reluctance" is that one is more likely to go ahead and do it anyway.
Why is resistivity of a semiconductor higher than that of a metal?
Resistivity is the resistance, in ohms, between the opposite faces of a 1-metre-cube of a material. For metals, resistivity is in the region of 0.0000001 ohm-metre. For semiconductors, it is much higher - it is in the region of 0.01 ohm-metres.
What is the noun form of reluctance?
"Reluctance" is a noun.
Resistivity range of semiconductors lies between the range of?
Semiconductors have bulk resistivity in the range of 10-4 ohm-cm (heavily doped) to 103 ohm-cm (undoped, or intrinsic).
What is reluctance and what is its symbol?
Reluctance is the opposition offered by a magnetic circuit to the formation of magnetic flux. The symbol for reluctance is R or Rm. Reluctance is measured in amperes per weber (A/Wb). Reluctance is equivalent to resistance in an electric circuit.
What is the adjective of reluctance?
Reluctant is the adjective form of reluctance.
What is the difference between a conductor and a resistor?
A conductor is a material that conducts electricity through it. Resistors main job is to oppose the flow of electrons through a conducting material. Resistivity can be understood in detail with the help of Ohm's Law.
What is the resistivity of graphite?
The resistivity of graphite is 7.837 µΩm.
