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Circuit with Potentiometer

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Analyze the following circuit (in attached file) completely to find the loop currents and then the output voltage Vo across R4 with a potentiometer R3 of 1 k ohm.

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where R5 = a R3 and R6= (1- a) R3 where a varies form 0 to 1 in steps of 0.05. Use these
values to write the loop equations and then find the output voltage Vo across the resistor R4.
The ...

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