Wheatstone Bridge Rechner
Analyze a Wheatstone bridge circuit. Find bridge voltage und check balance condition.
V
Ω
Ω
Ω
Ω
Bridge Voltage
0.0000 V
Ratio R1/R31.0000
Ratio R2/R41.0000
Bridge Voltage vs Supply Voltage
Formel
## Wheatstone Bridge Analysis A Wheatstone bridge measures unknown resistance by balancing two divider legs. ### Formula **V_bridge = V_s x [R3/(R1+R3) - R4/(R2+R4)]** Balanced when **R1/R3 = R2/R4** (bridge voltage = 0).
Lösungsbeispiel
10 V supply, R1=R3=1k, R2=R4=2k.
- 01Left: R3/(R1+R3) = 1000/2000 = 0.5
- 02Right: R4/(R2+R4) = 2000/4000 = 0.5
- 03V_bridge = 10 x (0.5 - 0.5) = 0 V (balanced)
Häufig Gestellte Fragen
What does balanced mean?
Bridge voltage is zero and no current flows through the galvanometer.
What is it used for?
Precision resistance measurement, strain gauges, load cells, and temperature sensors.
Can bridge voltage be negative?
Yes, indicating reversed polarity compared to the assumed direction.
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