why resistance is more when the conductor is more or long
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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. Hence, longer the wire, greater the resistance.
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the resistor is more when the conductor is more because electrons collide with more ions as they pass through
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