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Why electrical conductivity of metals decrease with increase in temperature?
Wiki User
∙ 12y ago
The reason for this very behaviour of metals is explained by the fact that at random, the free electrons moving in a metallic object (say wire) also collide with the atoms contained in the wire. Due to these collisions, their kinetic energy is wasted to some extent.
When the temperature of such a metallic wire is increased, their collisions with the containing atoms become more frequent and ultimately more energy is wasted. This obviously reduce their thermal and electrical conductivity.
Wiki User
∙ 12y ago
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