Analogia hidráulica do circuito elétrico
This simulation runs a water circuit alongside an electric one so you can see which parts correspond. Pumps stand in for cells, narrow pipes for resistors, and the flow rate for current, giving you a physical picture to fall back on when the equations get abstract.
Como usar esta simulação
- Change the pump strength and the pipe widths
- Rearrange components into series and parallel layouts
- Compare the water flow with the current reading
O que observar
- Flow rate is identical all round a single loop, just as current is
- Most of the pressure drop occurs across the narrowest pipe
- Adding a parallel branch increases total flow, mirroring reduced resistance
A física por trás
Potential difference plays the role of pressure difference, current the role of volumetric flow, and resistance the role of pipe constriction, giving Ohm's law V = IR. The analogy correctly predicts that current is the same all the way round a series loop — water is not used up by a narrow pipe, and charge is not used up by a resistor.