智慧树知到《模拟电子技术基础（西安邮电大学版）》章节测试答案 第一章 1、Which of the following is not a commonly used semiconductor material’? （ ） A:carbon B:lead C:silicon D:germanium 答案: lead 2、The characteristic of an ideal diode are those of a switch that can conduct current（ ） . A:in both directions B:in one direction only C:in both directions but in only one direction at a time D:depends on the circuit it is used in 答案: in one direction only 3、When a diode is doped with either a pentavalent or a trivalent impurity its resistance will （ ） . A:increase B:decrease C:make the resistance stable against variation due to temperature 答案: decrease 4、The piecewise linear model, equivalent circuit of the diode consists of （ ）. A:a junction capacitor, a battery, a small resistor, and the ideal diode B:a battery, a small resistor, and the ideal diode C:a battery and the ideal diode D:the ideal diode 答案: a battery, a small resistor, and the ideal diode 5、When a p-n junction is reverse-biased, its junction resistance is （ ）. A:high B:low C:determined by the components that are external to the device D:constantly changing 答案: high 第二章 1、What is the value of the voltage dropped across forward-biased silicon diodes that are connected in parallel with each other? （ ）. A:11.3 V B:35 V C:7 V D:4 V 答案: 7 V 2、The resistor voltage and resistor current in this circuit are （ ）.image.png A:10 V, 5 mA B:11 V, 2 mA C:11 V, 11 mA D:2 V, 11 mA 答案: 11 V, 11 mA 3、Which of the following circuits is used to eliminate a portion of a signal? （ ）. A:Clipper B:Damper C:Voltage multiplier D:Voltage divider 答案: Clipper 4、The circuit shown here is a （ ）. image.png A:series clipper B:parallel clipper C:series clamper D:shunt clamper 答案: parallel clipper 5、The Zener diode must be operated such that （ ）. A:image.png B:image.png is less than the specified image.png C:the applied voltage is greater than image.png
下一篇：智慧树知到《生物化学（齐鲁工业大学版）》章节测试答案