The Water Analogy

Picture a water tank on a rooftop connected to a hose at ground level. The height of the tank is voltage — more height means more pressure. The flow of water through the hose is current. The width of the hose sets resistance — a narrow hose restricts flow.

• Raise the tank higher (more voltage) and more water flows
• Widen the hose (less resistance) and more water flows
• Both changes increase current, exactly as V = IR predicts

The analogy isn't perfect — electrons don't splash — but it captures the core logic. Raise the pressure or open the path, and more current moves.