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GATE ECE 2010 | Question: 10

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Assuming the $\text{OP-AMP}$ to be ideal. the voltage gain of the amplifier shown below is

  1. $-\frac{\mathrm{R}_2}{\mathrm{R}_1}$
  2. $-\frac{\mathrm{R}_3}{\mathrm{R}_1}$
  3. $-\left(\frac{\mathrm{R}_2 \| \mathrm{R}_3}{\mathrm{R}_1}\right)$
  4. $-\left(\frac{\mathrm{R}_2+\mathrm{R}_3}{\mathrm{R}_1}\right)$

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