Why does a resistance is added along with capacitor to block dc component of input voltage in non inverting ac opamp? – electronics.stackexchange.com

Why does a resistance is added along with capacitor to block dc component of input voltage in non inverting ac opamp? – electronics.stackexchange.com

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I have read somewhere that R2 added provides the dc return to ground however this would reduces the overall input impedance of op-apm.I/p impedance must be high for op-amp.How to solve this problem?

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