He warned his son not to go into the forest alone because he was fearful_____some wild animals might hurt him.
A. if
B. that
C. whether
D. as
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在PN结外部施加电压使得P区电位(高于/低于)N区,即PN结处于(正偏/反偏),此时PN结处于导通状态。
在本征半导体中掺入杂质元素得到的杂质半导体中载流子浓度大幅提高,因此导电能力大幅增强。
A. 对
B. 错
PN结反向偏置时,在PN结内部会有从N区流向P区的微弱电流,称为反向饱和电流。
A. 对
B. 错