Why resistivity of metal increases with temperature
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Why resistivity of metal increases with temperature?
If the temperature of the metal is raised the atoms vibrate more strongly and the electrons make more violent collisions with them and so the resistance of the metal increase.
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Explanation:
Because due to increase in temperature the atoms get the energy to vibrate constantly in their respective places. With this vibration the mean path and obstacle to the current increases and hense the resistivity increases
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