【判断题】【消耗次数:1】
PN结具有单向导电性。
正确
错误
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相关题目
【判断题】 PN结的单向导电性是指PN可以在任意一个方向导电
①  正确
②  错误
【判断题】 二极管是根据PN结单向导电的特性制成的,因此二极管也具有单向导电性。
①  正确
②  错误
【判断题】 PN结的单向导电性只有在外加电压时才能体现出来。
①  正确
②  错误
【判断题】 构成各种半导体器件的基础是PN结,它具有单向导电和反向击穿特性。
①  正确
②  错误
【判断题】 半导体二极管的特性为单向导电性。
①  正确
②  错误
【判断题】 半导体二极管的主要特点是具有单向导电性,在电路中可以起整流和检波等作用。
①  正确
②  错误
【单选题】 下列物质中导电性最差的是 ( )。
①  盐酸
②  KCl固体
③  熔融的NaOH
④  石墨棒
【判断题】 PN结反向偏置时,PN结的内电场增强。
①  正确
②  错误
【多选题】 影响半导体导电性能的因素有()。
①  A.光照
②  B.温度
③  C.压力
④  D.磁场
【单选题】 晶闸管内部有( )个PN结。
①  1
②  2
③  3
④  4
随机题目
【单选题】 Well go for a picnic if it ________tomorrow.
①  isnt going to rain
②  wont rain
③  doesnt rain
④  isnt raining
【单选题】 He asked the waiter ________ the bill.
①  on
②  of
③  for
④  after
【单选题】 I forgot to return the book to you yesterday. So I _____________today.
①  might do it
②  must do it
③  had to do it
④  must have to do it
【单选题】 She wonders ____will happen to her private life in the future.
①  that
②  it
③  this
④  what
【单选题】 What ___the population of the USA?
①  is
②  are
③  have
④  has
【单选题】 Tom is so talkative. Im sure youll soon get tired _______ him.
①  of
②  with
③  at
④  on
【单选题】 Its reported that a new hospital _____________here next year.
①  would be set up
②  was going to set up
③  will be set up
④  is going to set up
【单选题】 If the doctor had been available, the child ____________.
①  would not die
②  could not have died
③  might not die
④  should not have died
【单选题】 If Mary _______shopping this afternoon, please ask her to write a shopping list first.
①  will go
②  goes
③  went
④  has gone
【单选题】 Measles(麻疹) ________ a long time to get over.
①  spend
②  spends
③  take
④  takes