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How is a semiconductor different from
a conductor?
半导体与导体有什么不同？
How does current flow in an intrinsic
semiconductor like silicon and germanium?
在本征半导体如硅和锗中，电流是如何流动的？
What is the effect of the impurities which
produce p-type and n-type semiconductors?
杂质对产生p型和n型半导体有什么影响？
A p-n junction will conduct current in one
direction but not in the other. Why is that?
PN结会在一个方向导电，而在另一个方向不导电。为什么会出现这种情况？
Describe the current characteristic of a
pn junction diode.
描述PN结二极管的特性
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