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A Wheatstone bridge is comprised of 4 resistors, 120 Ohm nominal resistance each. Exactly one of...

A Wheatstone bridge is comprised of 4 resistors, 120 Ohm nominal resistance each. Exactly one of these resistors (R3) is a strain gauge, gauge factor is 2.0. The supply voltage is 3 V. The bridge is in balance when the strain gauge is unloaded. Under loading, the strain gauge is subject to strain (epsilon=0.0025).

  1. In microstrain, the strain is
  1. Find the voltage output of the bridge in millivolts
2 0
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