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Resistivity is normally symbolized by the greek letter rho . Units are either ohm-meter (SI) or circular-mil ohms per foot (US). It describes the specific resistance of a sample of material that has particular length and cross-sectional area.
Another AnswerIn SI, resistivity is measured in ohm metres.
In North America, it is measured in ohm circular-mil per foot.
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∙ 10y ago
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∙ 12y agoThe SI unit of measurement for resistivity is the ohm metre, although it is often expressed in terms of microhm metres.
Conductivity is the reciprocal of resistivity, and its SI unit of measurement is the siemens per metre.
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∙ 9y agoThe SI unit for resistivity is the ohm metre.
In North America, resistivity is measured in ohm circular-mils per foot (which is often incorrectly written as 'ohms per circular-mil foot').
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∙ 12y agoThermal conductivity: W/m.K
Electrical conductivity: S/m.
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∙ 11y agoConductivity is the reciprocal of resistivity, and is measured in siemens per metre (S/m). (Resistivity is measured in ohm metres)
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∙ 8y agoThe SI unit for conductance is the siemens (S). A siemens is the reciprocal of the ohm. A siemens also equals how many amperes divided by voltage.
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∙ 11y agoThe SI unit of conductance is the Siemens and is abbreviated as S.
It is also known as the mho, but that use is not SI.
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∙ 11y agoohm-1 cm2 mol-1
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What is resistivity and what factor does it depend?
Electrical resistivity (also known as resistivity, specific electrical resistance, or volume resistivity) quantifies how strongly a given material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charge. Resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is theohm⋅metre (Ω⋅m)It defined as resistance offerde by a unit length and cross section area conductor.It depends on material used.it depends on relexation time and temperature.
What is the cgs unit of specific resistance?
Specific resistance is resistivity, abbreviated with the Greek letter "p" (rho) or by the capital letter "K".The unit of measurement for resistivity, in SI, is the ohm metre.In North-American units, it is ohm circular-mil per foot, although Americans tend to call it the 'ohm per circular-mil foot', for some reason or other.
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.
A cylinder if material is 10 cm and has a cross section of 2 cm if its resistance along the length b 20 ohm what will be its resistivity in si unit?
20 ohms
How do you convert conductivity to resistivity?
Conductivity is a measure of the ability of a substance to conduct electricity. Resistivity is a measure of how strongly a substance resists the flow of an electric current. So conductivity and resistivity are opposed to each other. A good conductor like copper has a low resistivity, and a good insulator like glass has a low conductivity and a high resistivity. Mathematically, conductivity and resistivity are inverses of each other, so it is quite easy to convert conductivity to resistance.
What is unit of resistivity?
ohm
What is resistivity of material?
the electrical resistance of a conductor through unit cross-sectional area per length is called "resistivity of material"
What is residual resistivity?
The specific resisitivity - also called residual or inherent resistivity - of a particular material (scientifically called its specific resistivity) is measured in ohms per unit volume. It can be determined by measuring the resistance of a test conductor having unit length and unit cross sectional area or some other accurately-measured volume of the material.
What is resistivity and what factor does it depend?
Electrical resistivity (also known as resistivity, specific electrical resistance, or volume resistivity) quantifies how strongly a given material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charge. Resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is theohm⋅metre (Ω⋅m)It defined as resistance offerde by a unit length and cross section area conductor.It depends on material used.it depends on relexation time and temperature.
What is conductance measured in?
The SI unit for conductivity is the siemens per metre. Conductivity is the reciprocal of resistivity, whose SI unit is the ohm metre.
What is the unit for electrical conductivity?
Conductivity is the reciprocal of resistivity, and is measured in siemens per metre (S/m). Resistivity is measured in ohm metres.
What is the resistivity of graphite?
The resistivity of graphite is 7.837 µΩm.
How Conduct related to conduction?
Conductivity is the inverse of resistivity. (i.e. conductivity = 1/resistivity) Resistivity is the resistance per metre of material. So a material will have a resistance of its length multiplied by its resistivity. So the resistance of an object is calculated from conductivity of the material from which it is made and its length by resistance = 1 / (conductivity * length) This makes no attempt to account for capacitance or inductance, so the impedance of a material would be calculated from conductivity as well as capacitance (or inductance) per unit length.
What is the cgs unit of specific resistance?
Specific resistance is resistivity, abbreviated with the Greek letter "p" (rho) or by the capital letter "K".The unit of measurement for resistivity, in SI, is the ohm metre.In North-American units, it is ohm circular-mil per foot, although Americans tend to call it the 'ohm per circular-mil foot', for some reason or other.
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.
