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Question
How does the resistance of a wire depend on length?
How does the resistance of a wire depend on length?
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Solution
The correct option is A Proportionaly
The electrical resistance of an electrical conductor is the opposition to the passage of an electric current through that conductor.
The longer the wire, the more resistance that there will be. There is a direct relationship between the amount of resistance encountered by charge and the length of wire it must traverse. If resistance occurs as the result of collisions between charge carriers and the atoms of the wire, then there is likely to be more collisions in a longer wire. More collisions mean more resistance.
Hence, as the length of the wire increases the resistance of the same wire also increases.
The electrical resistance of an electrical conductor is the opposition to the passage of an electric current through that conductor.
The longer the wire, the more resistance that there will be. There is a direct relationship between the amount of resistance encountered by charge and the length of wire it must traverse. If resistance occurs as the result of collisions between charge carriers and the atoms of the wire, then there is likely to be more collisions in a longer wire. More collisions mean more resistance.
Hence, as the length of the wire increases the resistance of the same wire also increases.
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