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Electric Circuit Simulator (2D)

Interactive 2D electric circuit schematic: switch a battery, resistor and light bulb between series and parallel wiring and watch animated current flow, with live Ohm's-law readouts for current, voltage and power.

Electronics & Circuits2DEasy60 FPS📱 Mobile-adapted⇄ 3D version

This 2D schematic redraws the classic battery-switch-resistor-bulb loop as a flat circuit diagram: flip the switch to open or close the loop, choose series or parallel wiring, and drag the voltage and resistance sliders to watch animated current dashes speed up or slow down along the wires while the bulb's glow tracks the power it dissipates. Every reading in the panel is computed live from Ohm's law (I = U / R) and the power law (P = I²R), so the numbers always match what the circuit is doing on screen.

⚙ Under the hood

A 2D schematic circuit with a battery, switch, resistor and light bulb, switchable between series and parallel wiring, with live Ohm's-law readouts for current, voltage and power.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install