Common questions

Which wire has the most resistance?

Which wire has the most resistance?

Nichrome
Nichrome, a non-magnetic 80/20 alloy of nickel and chromium, is the most common resistance wire for heating purposes because it has a high resistivity and resistance to oxidation at high temperatures.

Does a longer wire have more current?

The length of a wire when it is longer, causes the resistance to increase, when the wire is shortened the resistance decreases. A larger diameter wire will carry more current than a small diameter will. A longer wire will eventually carry less current, because the resistance increases as the length increases.

Why does resistance decrease when length of wire increases?

When cross sectional area increases the space of the elctrons to travel increases(simply explained). Therefore less amount of obstacles for the current. Therefore when area increases the resistance decreases.

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Does length of wire affect resistance?

First, the total length of the wires will affect the amount of resistance. The longer the wire, the more resistance that there will be. Second, the cross-sectional area of the wires will affect the amount of resistance. Wider wires have a greater cross-sectional area.

Which length of wire offers the greatest resistance?

A short wire has a lower resistance than a long one*. Resistance is directly proportional to the length of the path through which current flows: R ∝ L. This means the longer the wire, the more resistance. 2.

Does wire length affect resistance?

First, the total length of the wires will affect the amount of resistance. The longer the wire, the more resistance that there will be. In the same manner, the wider the wire, the less resistance that there will be to the flow of electric charge.

How does length increase resistance?

The length of the wire is directly proportional to the resistance. The longer the wire, greater it’s resistance. The longer the wire is, more number of collisions occur while the electrons travel from one end of the wire to another. This increases the resistance.

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Does resistance increase with wire length?

First, the total length of the wires will affect the amount of resistance. The longer the wire, the more resistance that there will be. More collisions mean more resistance. Second, the cross-sectional area of the wires will affect the amount of resistance.

How does resistance change if the length of the wire is increase?

The resistance is directly proportional to the length of the wire, the longer the wire the greater the resistance. Well the longer the wire the more collisions the electrons will have with the atoms in the way from one end of the wire to the other. Therefore the resistance will increase as the length increases.

How does resistance of a wire increase with length?

How does the resistance of a wire depends on its length?

The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area.

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What is the relationship between wire length and electrical resistance?

Very short answer: long wire. Short answer: Electrical resistance of a conductor (substances which allow passage of electric current) is directly proportional to the conductor’s length & inversely proportional to the cross-section area. Proportionality constant is called resistivity, which is function of temperature.

What is the difference between short wire and long wire?

Short wire have less resistance compared to that of long provided both have the same area of cross section.

Why does a thicker wire have a lower resistance?

A thicker wire simply has more ‘lanes’ on the go at once. A higher current for a given voltage means a lower resistance. The thicker wire in (4) has a lower resistance than the thinner wire in (3). The resistance of a wire decreases with increasing thickness.

Is there a resistance to the flow of an electric current?

There is a resistance to the flow of an electric current through most conductors. An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal.