“contact potential difference”的概念、定义、习题解题方法及翻译-物理辞典

单词	contact potential difference
释义	contact potential difference The potential difference that occurs between two electrically connected metals or between the base regions of two semiconductors. If two metals with work functions φ₁ and φ₂ are brought into contact, their Fermi levels will coincide. If φ₁ > φ₂ the first metal will acquire a positive surface charge with respect to the other at the area of contact. As a result, a contact potential difference occurs between the two metals or semiconductors
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物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。