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GATE Electrical 2014 Set 3 | Question: 22

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An operational-amplifier circuit is shown in the figure.

The output of the circuit for a given input $v_i$ is

  1. $- \bigg (\dfrac{R_2}{R_1} \bigg)v_i \\$
  2. $- \bigg (1+\dfrac{R_2}{R_1} \bigg )v_i \\$
  3. $\bigg (1+\dfrac{R_2}{R_1} \bigg)v_i \\$
  4. +$V_{\text{sat}} \text{ or } -V_{ \text{sat}}$
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