why we are using input resistance in op-amp. indicate the role of it.

why we are using input resistance in op-amp. indicate the
role of it.

Question Posted / gomathi

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why we are using input resistance in op-amp. indicate the role of it...

Answer / kaustav

as because for an ideal op amp the input resistance must be
infinite,but practically it does not happen so input
resistance must be kept high so that current must flow
through the feedback path

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