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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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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?
The resistivity of the material can be calculated using the formula: resistivity = resistance x cross-sectional area / length. Plugging in the values: resistivity = 20 ohm x 2 cm / 10 cm = 4 ohm cm. Since resistivity is measured in ohm meters (SI unit), the resistivity of the material in SI unit would be 0.04 ohm meter.
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.
If the diameter of wire is double what is resestivity?
Resistivity won't change. Resistivity is a material property that doesn't depend on the shape.
Can resistivity be negetive?
No, resistivity cannot be negative. Resistivity is a material property that indicates how strongly a material opposes the flow of electric current. It is always a positive quantity, even though some materials may have very low resistivity values.
What is the resistivity of deionized water and how does it compare to the resistivity of other types of water?
The resistivity of deionized water is high, meaning it is a good insulator. It is higher than the resistivity of tap water or seawater, which have more dissolved ions and conduct electricity better.
What is unit of resistivity?
ohm
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?
The resistivity of the material can be calculated using the formula: resistivity = resistance x cross-sectional area / length. Plugging in the values: resistivity = 20 ohm x 2 cm / 10 cm = 4 ohm cm. Since resistivity is measured in ohm meters (SI unit), the resistivity of the material in SI unit would be 0.04 ohm meter.
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 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.
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.
When a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of both?
The resistivity of germanium will decrease with increasing temperature due to a positive temperature coefficient of resistivity, while the resistivity of silicon will increase with increasing temperature due to a negative temperature coefficient of resistivity. At room temperature, silicon will have a higher resistivity compared to germanium.
Does high resistivity have a higher number or lower number?
High resistivity corresponds to a higher numerical value. In the context of materials, resistivity is a measure of how strongly a material opposes the flow of electric current; materials with high resistivity, like rubber or glass, have larger resistivity values compared to conductive materials like copper or aluminum, which have low resistivity values.
If the diameter of wire is double what is resestivity?
Resistivity won't change. Resistivity is a material property that doesn't depend on the shape.
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.
