Đặt điện áp u = UOcos(100πt + π)(V) vào hai đầu cuộn thuần cảm có L= (H). Ở thời điểm mà điện áp giữa hai đầu cuộn cảm là 100(V) thì cường độ dòng điện trong mạch là 2(A). Viết biểu thức của cường độ dòng điện trong mạch?

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose the word that has the underlined part pronounced differently from the rest:

  comprise                   advise                    promise                   devise

• Choose the word that has the underlined part pronounced differently from the rest:

  great                   region                   origin                    language

• Choose the word that has the underlined part pronounced differently from the rest:

  growth                   other                    theorist                    third

• Choose the word that has the underlined part pronounced differently from the rest:

  economy                   diversity                  dairy                   dynamism

• Choose the best answer for the following sentence:

  Asia and Africa are the two biggest _____________.
   

• Choose the best answer for the following sentence:

  Our country needs is a long-term policy for investment in science and ____________.

   

• Choose the best answer for the following sentence:

  The noise in big cities is ____________ in small town.
  
  

• Choose the best answer for the following sentence:

  She is _____________ a novelist.
  
  

• Choose the best answer for the following sentence:

  Los Angeles and San Francisco are ____________ on the West Coast.
  
  

• Choose the best answer for the following sentence:

  There were ___________ a thousand people there buying tickets.