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How would resistance r depend on cross section and length of the material?
Wiki User
∙ 10y ago
Resistance R =p(L /A)
i,e Resistance(R) of a conductor will be directly proportional to its length(L) ==> if the length of the conductor increases its resistance also will increase.
i,e Resistance(R) of a conductor is inversely proportional to its cross section area(A) ==> if the Area of the conductor increases its resistance also will decrease.
Wiki User
∙ 10y ago
Resistance (R) of a material depends on both its cross-sectional area (A) and length (L) according to the formula R = ρ * L / A, where ρ is the material's resistivity. The resistance is directly proportional to the length of the material and inversely proportional to its cross-sectional area. This means that as the length of the material increases, the resistance also increases, while as the cross-sectional area increases, the resistance decreases.
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Does resistivity depend on length and area of the cross section of the material?
Yes, resistivity depends on the length and cross-sectional area of the material. Resistivity is calculated using the formula ρ = R(A/L), where ρ is the resistivity, R is the resistance, A is the cross-sectional area, and L is the length of the material.
What are the two factors of a wire that will alter its resistance?
The two factors that will alter a wire's resistance are its length and cross-sectional area. Increasing the length of the wire will increase its resistance, while increasing the cross-sectional area will decrease its resistance.
What change in resistivity if length is doubled?
If the length of a material is doubled, the resistivity remains the same. Resistivity is an intrinsic property of a material and is not affected by the dimensions of the material. However, the resistance of the material will double if the length is doubled, according to the formula R = ρ * (L/A), where R is resistance, ρ is resistivity, L is length, and A is cross-sectional area.
What four things does electrical resistance depend on?
Electrical resistance depends on the material's resistivity, length, cross-sectional area, and temperature. Together, these factors affect how much a material resists the flow of electrical current.
What does the resistance of the wire depend on?
The resistance of a wire depends on three main factors: its length, its cross-sectional area, and the material it is made of. Generally, longer wires have higher resistance while thicker wires have lower resistance. The material's resistivity also plays a significant role in determining the wire's resistance.
How would resistance depend on cross section and length of the material?
Resistance R =p(L /A)i,e Resistance(R) of a conductor will be directly proportional to its length(L) ==> if the length of the conductor increases its resistance also will increase.i,e Resistance(R) of a conductor is inversely proportional to its cross section area(A) ==> if the Area of the conductor increases its resistance also will decrease.
Factors affecting resistance of a metal conductor?
The material, the length, the cross section.
Which conditions make resistance small?
The resistance of a wire is the length divided by the cross-section area and the conductivity of the material. So for small resistance you need a wire with short length, large cross-section area (diameter) and a material with high conductivity like copper.
Does resistivity depend on length and area of the cross section of the material?
Yes, resistivity depends on the length and cross-sectional area of the material. Resistivity is calculated using the formula ρ = R(A/L), where ρ is the resistivity, R is the resistance, A is the cross-sectional area, and L is the length of the material.
The magnitude of the resistance of a wire depends on?
Temperature, Length of wire, Area of the cross-section of wire and nature of the material.
What are the two factors of a wire that will alter its resistance?
The two factors that will alter a wire's resistance are its length and cross-sectional area. Increasing the length of the wire will increase its resistance, while increasing the cross-sectional area will decrease its resistance.
What is the definition of specific resistance?
The electrical resistance offered by unit length and unit cross section of a material when a known voltage is applied at its ends.
Which is a better conductor between a short wire and long wire?
Double the length is double the resistance. Resistance of a wire is the resistivity of the material, times the length, divided by the cross-section area.
Does the resistance of a conductor incfrease by any measure when the conductor is in doubled in length?
The resistance is directly proportional to the length of conductor and inversely proportional to area of the cross section.If the length is doubled then the resistance will double.Resistance=rho*l/arho=resistivity of the material (Ohms/m) and depends on the material used for the wirel=length of the wirea= area of the cross section of the wire.
What change in resistivity if length is doubled?
If the length of a material is doubled, the resistivity remains the same. Resistivity is an intrinsic property of a material and is not affected by the dimensions of the material. However, the resistance of the material will double if the length is doubled, according to the formula R = ρ * (L/A), where R is resistance, ρ is resistivity, L is length, and A is cross-sectional area.
How do you calculate a cross-sectional area When all you know is resistance resistivity and length?
I think the equation you are looking for is Resistance (ohms) = Resistivity * Length / Area or R=p*L/A. This is the resistance of a circular wire with cross-section of A, length of L, and material with resistivity p. So to get area: Area = Resistivity * Length / Resistance.
What four things does electrical resistance depend on?
Electrical resistance depends on the material's resistivity, length, cross-sectional area, and temperature. Together, these factors affect how much a material resists the flow of electrical current.
