Precisely determine the unknown resistance (Rx) in a Wheatstone Bridge circuit at voltage null equilibrium. This essential tool helps engineers, students, and technicians easily solve for Rx when the bridge is balanced. Optimize your circuit analysis with accurate calculations.
Formula:
When a Wheatstone Bridge is balanced at voltage null equilibrium, the ratio of resistances in the arms is equal. The formula to find the unknown resistance (Rx) is:
Rx = (R2 × R3) / R1
Where:
- R1: Resistance in the first known arm (Ohms, Ω)
- R2: Resistance in the second known arm (Ohms, Ω)
- R3: Resistance in the third known arm (Ohms, Ω)
- Rx: Unknown resistance (Ohms, Ω)