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How can the op-amp make its inputs equal, if it can only change its output?

April 26, 2017inputs op-amp output

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How can the op-amp make its inputs equal, if it can only change its output?

1 Answer

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10 Posted

A. There must be an external circuit connection from the output to the input. This is called feedback. Generally if the connection is to the negative input, the result is negative feedback and positive feedback if connected to the positive input.