第二章测试1.What is the value of the voltage dropped across forward-biased silicon diodes that are connected in parallel with each other? ( ).
A:0.7 V B:1.4 V C:11.3 V D:0.35 V
答案:A
2.The resistor voltage and resistor current in this circuit are ( ).
![image.png image.png](http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/94fdb78f530345828257da8827161fa4.png)
A:2 V, 11 mA B:11 V, 11 mA C:10 V, 5 mA D:11 V, 2 mA
答案:B
3.Which of the following circuits is used to eliminate a portion of a signal? ( ).
A:Damper B:Clipper C:Voltage multiplier D:Voltage divider
答案:B
4.The circuit shown here is a ( ).
![image.png image.png](http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/90c813ebc2dc44c0819f37d360f03793.png)
A:series clamper B:series clipper C:parallel clipper D:shunt clamper
答案:C
5.The Zener diode must be operated such that ( ).
A:the applied voltage is greater than
![image.png image.png](http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/84b4f165f54245599fc101e70c2d0ab8.png)
![image.png image.png](http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/efe84848bd4747cbb68ace2febf69cf5.png)
![image.png image.png](http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/0e96a8bc3e1d4d0dbfd5dfc7f62f847e.png)
![image.png image.png](http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/f226b8acfe5e43f78d03e93f9ba594e1.png)
答案:B
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