DIAGRAMS.INK / ELECTRICITY

Build a circuit, then break it

Place parts in the dotted slots. Series loops share one current; parallel branches share the voltage.

Bulbs

Where the current goes

Moving dots: conventional current (faster = more amps)Green lever: closed switchRed lever: open switchIdeal model: batteries have no internal resistance, wires and closed switches are 0 Ω, each bulb is a fixed 12 Ω. Real bulbs change resistance as they heat. Changes that would short a battery are refused.