西安邮电大学
第一章Which of the following is not a commonly used semiconductor material'? （ ）
答案:lead
The characteristic of an ideal diode are those of a switch that can conduct current（ ）.
答案:in one direction only
When a diode is doped with either a pentavalent or a trivalent impurity its resistance will （ ）.
答案:decrease
The piecewise linear model, equivalent circuit of the diode consists of （ ）.
答案:a battery, a small resistor, and the ideal diode
When a p-n junction is reverse-biased, its junction resistance is（ ）.
答案:high
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