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Question regarding electronics (operation amplifier)

  1. Feb 20, 2005 #1
    I have my question,solution and doubt in the attachment that followed.Thanks for anybody that spend some time on this question.

    Attached Files:

  2. jcsd
  3. Feb 20, 2005 #2
    Questoin are the two oval black dots connected?

    Don’t these two sentences contradict each other?
    Last edited: Feb 20, 2005
  4. Feb 21, 2005 #3
    The two oval black dots is connected among themselves and I draw the diagram same as in the book.Yes,the two sentences followed one after another.
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