Explain how electron mobility changes for a good conductor when 1. the temp. of the conductor is decreased at constant potential difference. 2. applied P.D. is doubled at constant temp.
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At a constant potential difference, when the temperature is decreased the relaxation time increases as the mobility of electron is directly proportional to the relaxation time so the mobility also increases
If the potential difference increases the electron field also increases the mobility gets half.
If the potential difference increases the electron field also increases the mobility gets half.
kvnmurty:
doesnt the mobility become twice ??
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Answer: 1) increases
2) gets half
Explanation:
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