What would be the effect on the resistance of a metal wire of increasing its length?
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when increase the length of wire than resistance of a metal is low /work as a sunt........
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Explanation:
(a) From the above equation, it is clear that resistance is directly proportional to the length. So, if the length is increased the resistance of the metal wire will increase too.
(b) When you increase the diameter of the metal wire, the area of cross-section increases resulting into decreasing the resistance of the metal wire.
(c) The resistance of a metal wire increases when the temperature is increased as the resistance depends on the nature of the material .
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