【判断题】【消耗次数:1】
某二极管的正向导通压降为0.7V,则此二极管是硅二极管。
正确
错误
参考答案:
复制
纠错
相关题目
【单选题】 二极管外加电压VD=0.6V,流过二极管电流为120mA,则二极管的正向直流电阻RD是( )。
①  15Ω
② 
③  20Ω
【判断题】 在实际电路中二极管发生了击穿,必须更换二极管。
①  正确
②  错误
【单选题】 二极管是常用的电子元件器,一般情况下二极管的极性都标注在二极管的管壳上。
① 
② 
【判断题】 二极管正向动态电阻的大小,随流过二极管电流的变化而变化,时不固定的。
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
【单选题】 二极管两端加上正向电压时
①  一定导通
②  超过死区电压才导通
③  超过0.7V才导通
④  超过0.3V才导通
【判断题】 稳定二极管稳压时是处于正向偏置状态。
①  正确
②  错误
【单选题】 利用二极管的( )组成整流电路。
①  正向特性
②  单向导电性
③  反向击穿特性
【单选题】 整流二极管的优点:电路简单。
① 
② 
【判断题】 半导体二极管的特性为单向导电性。
①  正确
②  错误
随机题目
【单选题】 A: Can I help you? B: [填空]. Where do I pay my fees?
①  Thank you
②  As you please
③  Yes, you can
④  Yes, please
【单选题】 A: Why did your boss shout at you? B: [填空]. He was just in a bad mood.
①  Nothing in particular
②  who knows
③  You said it
④  Im quite surprised
【单选题】 A: I went on a date with Susan last weekend. B: Really? [填空]? A: I couldnt ask for a better night.
①  Is she nice
②  How was it
③  Is it a beautiful night
④  Did you like her
【单选题】 A: Id like a cup of coffee. B: [填空], is instant OK?
①  Im sure
②  No kidding
③  Sure I do
④  Of course
【单选题】 A: Happy New Year to you. B: [填空]
①  Yes,Im happy.
②  How about you
③  Fine,thank you.
④  The same to you.
【单选题】 A: You look so beautiful in this dress today. B: [填空].
①  It cost me a fortune
②  Its very nice of you
③  It will be nice on you too
④  I hope you like it
【单选题】 A: Hello, this is Bill. Id like to speak with Mr Wang, please. B: [填空]
①  Who is speaking over there?
②  Sorry, he is not available at the moment.
③  Can you tell me who you are?
④  Theres no one here by that name.
【单选题】 A: [填空]? B: Its Monday.
①  What day is it
②  Whats the date today
③  Whats the time
④  What time is it
【单选题】 A: I must apologize to you for the delay. B: [填空].
①  Thats all right
②  No trouble at all
③  All the best
④  You are welcome
【单选题】 A: [填空]? B: He teaches maths in a school.
①  What does your brother want to do
②  Who is your brother
③  What is your brother
④  Where is your brother now