Đặt một điện áp xoay chiều u = 10sin100t (V) vào hai đầu điện trở thuần R = 10 Ω. Biên độ của cường độ dòng điện xoay chiều chạy qua điện trở là:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  Long: “Three new hotels _____________ in our city so far.”

  Thai: “What a good new!”
  
  

• Choose the best answer for the following sentence:

  Teacher: “You think that you came without __________ ?”

  Nam: “I’m sorry because I didn’t ask for your permission”
  
  

• Choose the best answer for the following sentence:

  He didn’t know what ___________ around him when he was sleeping.
  
  

• Choose the best answer for the following sentence:

  When he ___________ home he turned on the radio.
  
  

• Choose the best answer for the following sentence:

  ___________ do you prefer, Chemistry or Physics?

• Choose the best answer for the following sentence:

  The air-hostess had known that you were ill,_______________ ?

• Choose the best answer for the following sentence:

  I wish you ___________ her why we didn’t do our homework.
  
  

• Find a mistake in the four underlined parts of the sentence and correct it:

  After he finished writing the letter he went to post it immediately.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Marie Curie was very poor, she had a little money to live on in Paris.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Last night, before going to bed all the students watched a very interesting film.