Đặt một điện áp xoay chiều u = U₀cosωt vào hai đầu đoạn mạch chỉ có tụ điện. Nếu điện dung của tụ điện không đổi thì dung kháng của tụ sẽ là

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in  the following questions:

  The blouse is a little too loose. You'd better ask your tailor to take it in.         

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in  the following questions:

  This computer is badly damaged. It cannot be repaired.         

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions:

  He was able to finish his book. It was because his wife helped him.      

• Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions:    

  The basketball team knew they lost the match. They soon started to blame each other.          

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions:

   I had never seen her before. However, I recognized her from a photograph.         

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions:

  No member in the team came to his birthday party. But Julia did come.         

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions:

  They are my two sisters. They aren’t teachers like me.         

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions:

  The human brain is ten times the size of a baboon’s. It weighs about 1,400 grams.         

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following question:

  Her living conditions were not good. However, she studied very well.         

• Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions:

  His wife phoned him. She reminded him to bring along the document.