01 / POWER SUPPLY
Set the potential.
V
0 V · off24 V
Internal resistance: 0.2 Ω. The terminal voltage falls as source current increases.
A WORKBENCH FOR YOUR WHAT-IFS
Small parts.
Bright ideas.
Build in 3D. Predict what will happen. Measure what changes.
SOURCE CURRENT0.00 A
TERMINAL VOLTAGE0.00 V
LOAD POWER0.00 W
Ready
COMPONENTS
Each new slot starts empty. Add a part to complete the path.
The same live circuit is represented in both views. Extend each path to 12 series slots; fill every slot to complete its path.
02 / COMPONENT PROBE
Select a component
How it works
Try this
In this simulation
Current—
Voltage drop—
Power—
03 / FOLLOW THE CURRENT
Where does it go?
LOAD & PROTECTION
Push it. Protect it.
Checking component loads.
04 / DC VOLTAGE SWEEP
See the whole response.
Calculated source current from 0–24 V for this exact circuit. The dot is your present setting.
Current circuit Captured baseline
Sweep values table
05 / PREDICT → TEST → EXPLAIN
Make your next move count.
Keep the circuit fixed and change the source. Predict the new total current before testing.
For a resistive circuit, how should current respond when voltage increases?
Guided wiring missions
How the model works · controls · learning references
A defined electrical model
Steady DC analysis of up to four parallel paths, each with up to 12 series slots. Choose a path and use Add slot to extend it. Wire and ammeter resistance are idealized as zero. Bulbs, motors, heaters and buzzers are resistive teaching modules; their animation illustrates power, not temperature, sound or mechanical dynamics. LED modules use a 2 V forward threshold and a built-in series resistance. Reverse leakage is not modeled. Parts have editable power or current ratings. Overload stress is illustrative: it rises above a rating, cools below it, and can open a component at 100%. Fuses must be replaced; circuit breakers can be reset. Warning-only mode prevents simulated failures.
Resistor colors use a five-band, ±1% nominal code. The solver uses the nominal resistance; it does not randomly apply tolerance. Stress is a teaching indicator, not a calculated temperature or manufacturer trip curve. This experiment environment has no AC, electrical transient or manufacturer SPICE models.
Hands, mouse or keyboard
Drag empty 3D space to orbit; right-drag to pan; scroll or pinch to zoom. In Inspect mode, drag a part onto another slot to move or swap it. Choose a component tool then tap a slot to place it. In 3D, selecting or placing a component opens its value editor inside the viewer. Edit values directly or use the resistance slider; readings and resistor bands update together. The slot selector and “Place here” button provide the same operations without dragging.
In the schematic, arrow keys move selection; Enter activates a slot; Delete removes a part. Undo and Redo restore circuit edits. Pausing flow stops visual animation; the electrical readings stay live.