Voltage · Resistance · Current
Drag the sliders — watch Ohm's Law in action
Green — Electron Current Flow (Input)
Yellow — Electron Current Flow (Output)
Resistance zone
3.00 A
AMPERAGE (current)
Ohm's Law: Amps = Volts ÷ Ohms
⚡ Important Concepts
Voltage Drop Across Resistance: The green electrons carry electrical pressure (voltage). As current passes through the resistance, that pressure is dropped across the resistor — the yellow output electrons carry no remaining voltage pressure. The voltage has been consumed by the resistance.
Current Is the Same at All Points: The amperage flowing into this circuit is the same amperage flowing out of it and returning to the source. Current does not get "used up" — only voltage pressure is dropped.
Circuit Type: This is a basic single-load series circuit. In a series circuit, there is only one path for current to flow, and the same current passes through every component.