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Does a wire with a diameter of 0.01 mm have lower resistance than a wire with 0.1 mm?
Wiki User
∙ 12y ago
No, a smaller diameter wire has a higher resistance. The 0.01 mm wire will have 1/100 the cross-sectional area of the 0.1 mm diameter wire, therefore the resistance will be 100 times as high.
Wiki User
∙ 12y ago
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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.
Does the resistance of a wire depend on the cross section area of the wire?
Yes. The bigger the cross section, the lower the resistance.
A lenght of cirular wire as a resistance of 1 ohms if its the diameter was double its resistance woul be.?
Its resistance would be half , 0.5 ohms is the answer.
How does the resistance of a wire vary with its diameter?
At a greater diameter, the cross-section will also be greater, and therefore the resistance will be less. This assumes that other things are equal, of course.
How does the thickness of wire affect the resistance?
A thicker wire has less resistance than a thinner wire.
Does long wire have a lower or higher resistance than short wire?
A long piece of wire will have more resistance in it than a shorter one of the same material.
How does the material of wire affect the resistance?
Basic: The larger the diameter the less resistance.Deep:R = p (L / A)The resistance is proportional to the length of the wire divided by its cross-sectional area. p is the resistivity of the material in question and varies greatly. Since area (assuming a circular wire) is A = pi * r2 the larger the diameter of the wire the lower its resistance will be.AnswerResistance is inversely proportional to the square of the diameter. So, if you double the diameter, you will quarter the resistance. If you halve the diameter, you will quadruple the resistance.
Do thicker or thinner wires have more Resistance?
Over the same distance the larger diameter wire will have less resistance that the smaller diameter wire.
A thicker resistance wire produces more heat?
I'm not sure what you mean by "thicker resistance" wire? The thicker or more diameter of a wire the less resistance it has. A larger diameter wire would produce less heat. More resistance would produce more heat.
A piece of wire 100 m long has a diameter of 1 mm with a resistance of 2 ohms calculate the resistance of the same wire 2 km long with the same current?
If the wire length is 100m and the Diameter is 1mm calculate the Resistance of wire?
Does the diameter of the wire affect resistance?
Yes. Other things being equal, a thicker wire has less 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.
Why does more current flow through the bulb when the reed switch was replaced with copper wire?
Copper wire has apparently lower resistance than the reed switch. The lower electric resistance, the higher electric current.
What increases resistance in a wire?
Current (measured by an ammeter) and Voltage (measured by a voltmeter) R= V/I Resistance equals voltage divided by current ================================ That's wonderful, but the measurement doesn't "affect" the resistance of the wire. The factors that do "affect" the resistance ... i.e. determine what the resistance will be ... are -- substance of which the wire is composed -- dimensions of the wire: thickness and length.
Suppose you have two wires of equal length made from the same material how is it possible for the wires to have differents resistances?
You don't specify diameter. I am assuming it is the same. However, the larger the wire the lower the resistance. Temperature affects resistance. The hotter the wire, the higher the resistance. You also don't specify the layout of the wire. For example you could make a coil or choke with one wire.
What factors effect the resistance of a wire?
Its elemental makeup. Its' diameter and its' length.
Does the resistance of a wire depend on the cross section area of the wire?
Yes. The bigger the cross section, the lower the resistance.
