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What is the effect of temperature on specific resistance of wire?
Wiki User
∙ 11y ago
increase of temp cause increase of specfic resistance...... bcz atoms exictes and cause hindrance in motio of free electons so by increasing temp specfic resistance increasaes
Wiki User
∙ 11y ago
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Does a longer wire equal resistance?
Wire is not equal to resistance. If you have two pieces of wire with the same thickness, composition, and temperature, the longer piece has higher electrical resistance.
Can copper and alluminium wire of same length and diameter have same resistance?
For a single temperature, yes. The copper wire will have a much smaller cross-section than the iron wire. For multiple temperatures, no. Copper and iron have different temperature coefficients for resistivity.
What are factors that affect resistance of electricity?
Temperature, thickness, length and type of wire.
What happens to resistance of the wire if the wire is short?
Short wire has less resistance Long wire has more resistance Thick wire has less resistance Thin wire has more resistance
Do bend in the wire effect the electric resistance?
The resistance is based on the cross sectional area. It is conceivable that you could bend a wire in such a way as to affect the cross sectional area, but unlikely.
Three ways which resistance of a wire can be increased?
You can increase the resistance in the wire, by doing any of the following:Increase the length of the wire.Reduce the wire's cross-section.Change to a material that has a greater resistivity (specific resistance).You can increase the resistance in the wire, by doing any of the following:Increase the length of the wire.Reduce the wire's cross-section.Change to a material that has a greater resistivity (specific resistance).You can increase the resistance in the wire, by doing any of the following:Increase the length of the wire.Reduce the wire's cross-section.Change to a material that has a greater resistivity (specific resistance).You can increase the resistance in the wire, by doing any of the following:Increase the length of the wire.Reduce the wire's cross-section.Change to a material that has a greater resistivity (specific resistance).
What will be the effect on specific resistance if length of wire is halved?
it will not effect it because it only depends upon property of medium
How does temperature affect resistance of a wire?
If you are asking if a hot wire has a greater resistance than a cold wire then the answer I would say is yes. Cold wires have always had less resistance than hot wires
What four factors determine the amount of resistance in a circuit?
Material that makes up the wire, length of wire, diameter of wire, and temperature of wire
What would reduce resistance in a copper wire?
Reduce the resistance:-- Use a shorter piece of wire.-- Use thicker wire.-- Cool the wire.Increase the resistance:-- Use a longer piece of wire.-- Use thinner wire.-- File a nick in the piece of wire you have.-- Stretch the wire.-- Heat the wire.
Does a longer wire equal resistance?
Wire is not equal to resistance. If you have two pieces of wire with the same thickness, composition, and temperature, the longer piece has higher electrical resistance.
If voltage is high will the resistance be high?
The electric resistance is related to the diameter and extension of the wire submitted to a determined voltage which will determine the electric current flowing into the wire.AnswerVoltage has no effect on resistance. Resistance is determined by the length, cross-sectional area, and resistivity of a material (resistivity is affected by temperature, so temperature indirectly affect resistance).
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.
The resistance of a wire depends on the?
The length, cross-sectional area, and resistivity. As resistivity changes with temperature, temperature indirectly affects resistance.
How is a current affected across a wire if its resistance increases?
As the resistance increases the temperature will also increases....
Can copper and alluminium wire of same length and diameter have same resistance?
For a single temperature, yes. The copper wire will have a much smaller cross-section than the iron wire. For multiple temperatures, no. Copper and iron have different temperature coefficients for resistivity.
Explain how the resistance of a wire varies with its length?
The resistance of a wire is a measure of how difficult it is for electricity to flow through the wire. The resistance of a wire is inversely proportional to its cross-sectional area and directly proportional to its length. This means that, all else being equal, the resistance of a wire increases as its length increases. There are several factors that can affect the resistance of a wire, including the type of material the wire is made of, the wire's cross-sectional area, and the wire's temperature. The resistivity of the material the wire is made of is a measure of how easily electricity can flow through the material, and different materials have different resistivities. For example, copper has a lower resistivity than aluminum, so a copper wire will have less resistance than an aluminum wire of the same size and length. In general, the resistance of a wire increases as its length increases because the electrons flowing through the wire encounter more and more obstacles as they travel through the wire. The longer the wire, the more obstacles the electrons must overcome, which increases the resistance of the wire. It is also important to note that the resistance of a wire is not a constant value, and it can change depending on the temperature of the wire. As the temperature of a wire increases, the resistance of the wire also increases. This is because the higher temperature causes the atoms in the wire to vibrate more, which makes it more difficult for the electrons to flow through the wire.
