【判断题】【消耗次数:1】
在正弦稳态交流电路中,电感元件可以等效为导线。
正确
错误
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相关题目
【判断题】 在正弦稳态交流电路中,电感元件可以等效为电流源。
①  正确
②  错误
【判断题】 在正弦稳态交流电路中,电容元件可以等效为开路。
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【判断题】 在正弦稳态交流电路中,电容元件可以等效为电压源。
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【判断题】 在直流电路中,电感元件可以等效为导线。
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②  错误
【判断题】 电感元件的正弦交流电路中,消耗的有功功率等于零。
①  正确
②  错误
【单选题】 在电阻元件的正弦交流电路中,伏安关系表示错误的是( )
①  u=iR
②  U=IR
③  ù=?R
【单选题】 在电感元件的交流电路中,电压和电流的相位
①  相同
②  电压的相位比电流的相位超前90°
③  电压的相位比电流的相位落后90°
④  不确定
【单选题】 电感元件的正弦交流电路中,电压有效值不变,当频率增大时,电路中电流将( )
①  增大
②  减小
③  不变
【单选题】 电感元件的正弦交流电路中,电压有效值不变,当频率增大时,电路中电流将
①  增大
②  减小
③  不变
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【单选题】 电感、电容相串联的正弦交流电路,消耗的有功功率为( )
①  UI
②  IX
③  0
随机题目
【单选题】 He’s determined to finish the job __________ long it takes.
①  no matter
②  however
③  wherever
④  whatever
【单选题】 -- Could I speak to John Harris, please.
①  Oh, how are you
②  I’m John
③  I’m listening
④  Speaking
【单选题】 Why don’t you travel to New York on vacation?
①  I don’t want to go
②  Excuse me, because I can’t
③  I want to, but I haven’t got enough money
④  Because I’m going to school today
【单选题】 Could you help me with my homework, please?
①  No, no way
②  No, I couldn’t
③  No, I can’t
④  Sorry I can’t. I have to go to a meeting right now
【单选题】 Determined to __________ as if everything were normal, he responded with a kind of indifference.
①  carry on
②  account for
③  bring up
④  get through
【单选题】 Mary, your dress is really beautiful. How is John?
①  Thank you very much
②  No, no, John is not bad
③  Thank you. He is fine
④  Don’t say that. It’s ugly. John is good
【单选题】 Excuse me, sir. Where is Dr. Brown’s office?
①  You can’t ask me
②  Pardon? I have no idea
③  Please don’t say so
④  Sorry I don’t know, but you can ask the man over there
【单选题】 a reading lamp on the table.
①  There is
②  There has
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【单选题】 And what we got to __________ is a disgrace.
①  come up with
②  catch up with
③  put up with
④  keep up with
【单选题】 In no circumstance __________ .
①  smoking should be allowed on the campus
②  should smoking be allowed on the campus
③  should smoking allowed on the campus
④  should smoking allow on the campus