In the given Wheatstone bridge, R1 = 500Ω, R3 = 200Ω. The bridge is balanced when R2 is adjusted to 125Ω. In the given Wheatstone bridge, R1 = 500Ω, R3 = 200Ω. The bridge is balanced when R2 is adjusted to 125Ω. Find the resistance Rx Rx = 100Ω Rx = 200Ω Rx = 50Ω Rx = 120Ω Right Answer is: Rx = 50Ω SOLUTIONThe given figure in the question is Given R1 = 500 Ω R2 = 125 Ω R3 = 200Ω Rx = ? According to Wheatstone bridge relation R1 Rx = R2 R3 500 × Rx = 125 × 200 Rx = 50 Ω