Calculadora de Ponte de Wheatstone — Formula
## 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).
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).
Exemplo Resolvido
10 V supply, R1=R3=1k, R2=R4=2k.
- Left: R3/(R1+R3) = 1000/2000 = 0.5
- Right: R4/(R2+R4) = 2000/4000 = 0.5
- V_bridge = 10 x (0.5 - 0.5) = 0 V (balanced)