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Electrical Engineering - Operational Amplifiers

  1. Mar 1, 2013 #1
    Hi in a homework problem I'm trying to solve circuit. I'm getting the output current of an operational amplifier going into the operational amplifier. Is this allowed? If not than I'm violating Kirchhoff Current law and my other calculated values of the circuit must be wrong.

    Thanks for any help.
  2. jcsd
  3. Mar 1, 2013 #2


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    Staff: Mentor

    An operational amplifier can source or sink current.
  4. Mar 1, 2013 #3


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    Science Advisor

    The output of the op amp can source or sink current, as gneill says, but there should not be any significant current flowing into or out of the input terminals. Is this your question?
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