【判断题】【消耗次数:1】
为了稳定三极管放大电路静态工作点,采用交流负反馈。
正确
错误
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相关题目
【判断题】 为了稳定三极管放大电路的静态工作点,采用串联负反馈。
①  正确
②  错误
【判断题】 为了稳定三极管放大电路交流输出电压,采用电压负反馈。
①  正确
②  错误
【判断题】 为了稳定三极管放大电路的交流输出电流采用电压并联负反馈。
①  正确
②  错误
【判断题】 为了提高三极管放大电路输入电阻采用串联负反馈。
①  正确
②  错误
【单选题】 三极管放大电路中,直流通路主要用来确定电路的( )。
①  波形失真
②  静态工作点
③  输出电压
④  放大倍数
【单选题】 下列是三极管各个极的电位,处于放大状态的三极管为
①  VB=0.7V VE=0V VC=0.3V
②  VB=-6.7V VE=-7.4V VC=-4V
③  VB=-3V VE=0V VC=6V
【单选题】 对三极管放大作用的实质,下面说法正确的是
①  三极管可以把小能量放大成大能量
②  三极管可以把小电流放大成大电流
③  三极管可以把小电压放大成大电压
④  三极管可用较小的电流控制较大的电流
【判断题】 三极管放大电路共有三种组态共射极、共集电极、共基集放大电路。
①  正确
②  错误
【单选题】 三极管作放大管时一般工作在( )。
①  放大区
②  截止区
③  饱和区
【判断题】 三极管放大电路共有三种组态分别是共射极、共集电极和共基极放大电路。
①  正确
②  错误
随机题目
【单选题】 All the flights ____ because of the snowstorm, we had to take the train instead.
①  were canceled
②  had been canceled
③  having canceled
④  having been canceled
【单选题】 Everything is right here, _____?
①  isn’ t it
②  aren’ t they
③  are they
④  is it
【单选题】 A camera takes light rays bounced off objects and____ them on a sheet of a film.
①  concentrates
②  mixes
③  combines
④  focuses
【单选题】 It has been proposed that we ____ our decision until the next meeting.
①  delayed
②  delay
③  can delay
④  are to delay
【单选题】 By the middle of the 21st century, the vast majority of the world’s population ____ in cities rather than in the country.
①  are living
②  will be living
③  have lived
④  will have lived
【单选题】 Mary tiptoed over and took the clock away because she hated to hear it ____ when she was trying to go to sleep.
①  sounding
②  ringing
③  ticking
④  humming
【单选题】 Under this ____ pressure some of the rocks even became liquid.
①  intensive
②  weighty
③  intense
④  bulky
【单选题】 The patient was fully ____ during the operation.
①  liberal
②  sensible
③  aware
④  conscious
【单选题】 He might have been killed ____ the timely arrival of the ambulance.
①  but for
②  except for
③  besides
④  except
【单选题】 You must be careful when ___ on the highway.
①  you driving
②  are driving
③  driving
④  you were driving