2. The analog-signal-conditioning chain inside a pressure meter consists of a sensor circuit with a voltage output, followed by two amplifier stages. The first amplifier has an output impedance of R....

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Extracted text: 2. The analog-signal-conditioning chain inside a pressure meter consists of a sensor circuit with a voltage output, followed by two amplifier stages. The first amplifier has an output impedance of R. and the second amplifier has an input impedance of R;. How large must R; be to keep the loading error less than 2%? (Your answer will be an expression containing Ro.)