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Analog circuits miscellaneous

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Analog circuits miscellaneous
  1. The common mode voltage is completely alternated at the out put of the differential amplifier shown in the figure, if

    1. R1 + R2 = R3 + R4
    2. R1 – R2 = R3 – R4
    3. R1
      		 =
      R3
      R2R4
    4. R2
      		 =
      R3
      R1R4
Correct Option: B

NA


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