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Differential Amplifier Baseline Operation

The Differential Amplifier below is being used to amplify the  difference output of the bridge circuit. The animation shows the Standard Resister, Rs being varied to obtain a minimum absolute output voltage. Output voltage is labeled "Out". From the animation calculate the value of Rx.

Note: Both outputs and difference between them are shown. 

See Schematic

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Wheatstone Bridge and Differential Amplifier
Normal operation Animation

Click here to download above animation to your Windows Desk Top.