Thevenin equivalent of wheatstone bridge

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uploaded imageHi,

For the circuit above, find the Thevenin equivalent as seen from a and b.

My attempt at a solution is;

Let Vs = 10V

Voltage across R3, V3 = (R3/(R3+R4))*Vs

Voltage across R4, V4 = (R4/(R4+R1))*Vs

Therefore the Vth = V3 - V4.

If R3 = R1 and R4 = R2, the bridge is balanced and Vth is zero.

The Rth of the circuit is (R3+R4)//(R1+R2)

Is my solution correct?

Answers (1)

  • WittyLeg147
    Rating:5 stars

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