A long wire has higher resistance than a short wire. This is because of the fact that in a long wire, the electrons end up colliding with a lot of ions as they pass through. So, the relationship between resistance and wire length is proportional.
Length of the wire – resistance is directly proportional to the length of a wire. The longer the wire, the higher the amount of resistance to an electrical current; this is known as a proportional relationship since resistance increases as length increases. This is influenced by the area of the wire.
resistance occurs as a result of the collisions between electrons and the atoms in the wire. There will be more collisions in a longer wire. Therefore, the longer the wire ,the more resistance there will be.
Because an electron flowing through a long wire will have to pass through more wire than an electron flowing through a short wire, this means that longer wires have more resistance than short wires.
Increased conductor length equals increased resistance in direct proportion. The thinner or smaller the diameter (cross sectional area), the greater the resistance. A wire with a 3mm diameter would have four times the resistance of a 6mm diameter wire.
In this case, the current and the length of the wire are inversely related.
Resistance of a wire is inversely proportional to the area of cross section. Hence thicker wire will have less resistance.
It is friction that makes wires feel hot. The type of wire conductor and its length and thickness affect current. Longer wires offer more resistance to flow than shorter wires, while thicker ones offer less resistance. This knowledge can be used to control the speed of a motor.
Complete answer:
So, the new resistance, after doubling the length of the wire, becomes twice of the original resistance. Hence, if the length of a wire is doubled, then its resistance becomes doubled.
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. This will continue to apply no matter how thick the wire is.
The larger conductor will have a lower resistance due to the increased volume of conductive material. Because resistance is determined by the material and the material's volume resistivity (resistance per unit volume), the more volume of material you have, the lower the resistance will be.
Wire has resistance. The longer the wire, the higher the resistance, the less current will flow. If you connect a load right at the battery and measure the voltage at the load then the voltage will drop very little.
Long lengths of wire have more resistance than short lengths. Thus, long lengths of wire will cause a larger voltage drop than shorter lengths.
The power drop or line loss in a wire depends on the wire length, size, and the current running through the wire. Larger wires have less resistance and can transmit more power without large losses. Losses in smaller wire remain low if the amount of power transmitted is small, or if the wire is not very long.
Resistance of a wire is directly proportional to its length and indirectly proportional to its area. Therefore, a long and a thin wire would have the highest resistance.
Detailed Solution. Aluminium wire has more resistivity than copper and resistance directly proportional to the length and inversely proportional to the area. So, an aluminium wire with more length and the lower area offers high resistance. From the options, an Aluminium wire of 8 m and 1 mm2 has the highest resistance.
The physical dimensions of conductor- Length and cross section area affect the resistance of the conductor.
What components of a circuit can be changed? Wire length - The longer the wire, the weaker the electrical current. Wire thickness - The thicker the wire, the weaker the electrical current. The number of cells - The more cells, the stronger the electrical current.
So if the length of the wire is increased its resistance also increases. The curve is linear, and the slope is directly proportional to the resistance of the conductor.
The length of the wire does not have a direct impact on amperage, but it does have an effect on voltage through resistance. The longer the wire, the higher is cable resistance and voltage drop.
Resistance is doubled because it is directly proportional to length.
Length of wire: Thick wires have less resistance than thin wires. Longer wires have more resistance than short wires. Area of the cross-section of the wire: Smaller diameter wires have greater resistance. Nature of the material: The copper wire has less resistance to thin steel wire of the same size.