What happens if the length of a wire increases?

When the length of wire is longer, the current has to travel more distance and face more obstacles. With the length, resistance increases. The space of the elctrons to travel increases when cross sectional area is increased.

Which of the following properties of the wire will change if a longer wire is used?

length – longer wires have greater resistance. thickness – smaller diameter wires have greater resistance. temperature – heating a wire increases its resistance.

What increases when a wire is made longer or thinner?

As a wire gets longer its resistance increases, and as it gets thinner its resistance also increases because its cross sectional area decreases.

How does increasing the length of a wire affect its resistance?

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.

What increases electrical resistance?

The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area. Resistance also depends on the material of the conductor. See resistivity. The resistance of a conductor, or circuit element, generally increases with increasing temperature.

Why does resistance increase with length of wire?

The resistance of a long wire is greater than the resistance of a short wire because electrons collide with more ions as they pass through. The relationship between resistance and wire length is proportional .

Is there change in area and length of a wire how it affected to the resistance and resistivity of the wire?

The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area. Resistance also depends on the material of the conductor.

Why does a longer wire have more resistance?

Why does a longer wire have more resistance? The longer a wire is the more resistance it has due to the longer path the electrons have to flow along to get from one end to the other. The larger the cross sectional area, the lower the resistance since the electrons have a larger area to flow through.

How does the thickness of the wire affect the current?

the thickness of the wire decreases 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. This makes it more difficult for the current to flow, and causes resistance.

What happens if you increase the length of a wire 2 times?

So, now if you increase the length of wire by 2 times it’s cross-sectional area will decrease by 2 times, because the volume of the wire has to remain constant. Let, the initial and final radius of the wire be r1,&r2 respectively. So, the cross-sectional area becomes 1/2 times the initial value.

What is the resistance of an electric current through a wire?

There is a resistance to the flow of an electric current through most conductors. The resistance in a wire increases as: the length of the wire increases the thickness of the wire decreases