how do you verify that resistance of a conductor is inversely proportional to the cross section area arof a conductor of a constant length and temperature
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Collect iron spokes of different lengths ; with same cross sectional areas. Make a circuit leaving gas between P and Q with a battery, ammeter and plug key. ... From this, we conclude that the resistance of a conductor is directly proportional to its length (l) for constant cross-sectional area. Therefore, R∝L.
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