Circuit Forge

Build a closed loop through battery + resistors that lights the LED — no shorts, no opens.

Goal

Stay inside the target current band given by Ohm's law (V = IR).

Controls

• Drag a wire from one nodeConnect to another node
• Tap a resistorCycle its value (10Ω / 100Ω / 1kΩ)
• Tap the batteryToggle voltage

Scoring

• Current within 5% of target → ⭐⭐⭐
• Within 15% → ⭐⭐
• LED lit at all → ⭐