In a balanced state,
Vab = Vad
i2R3 = i1R1
i2/i1 = R1/R3
Vbc = Vdc
Consider a Wheatstone bridge with some known resistances: Rx is 95 Ω, R1 is 25 Ω, and R2 is 185 Ω.
To what value, in ohms, must you adjust R3 to balance the Wheatstone bridge?
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