Simulators

Interactive electrical simulators for learning

Deterministic, simplified models that let you change values and see the consequences. They are teaching instruments, not installation design software or diagnostic replacements.

DC Circuit Simulator

Explore a simple DC source and resistive load with live voltage and current.

InteractiveSimplified model

Series & Parallel Circuit Simulator

Compare series and parallel resistor networks with live current distribution.

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Ohm's Law Simulator

Change voltage and resistance and watch current respond.

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Voltage Divider Simulator

See how the tap voltage changes with R1 and R2.

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Relay Simulator

Energise a relay coil and observe the contacts change state.

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Capacitor Charge & Discharge Simulator

Visualise first-order RC charging and discharging curves.

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AC Waveform Simulator

Explore amplitude, frequency, period and RMS for a sine wave.

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Three-Phase Simulator

See three balanced phases 120° apart and the resulting power.

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Electric Motor Simulator

Change supply voltage and mechanical load and observe speed and current trends.

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Automotive Circuit Simulator

Trace a battery, fuse, switch, relay and lamp circuit and diagnose opens.

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Model boundary. Simulations use ideal sources, ideal wires and simplified components. They do not model heating, transients, tolerances, insulation, fault energy or real installation conditions. Never use them to justify work on an energised system.

Need a full schematic editor? The existing Engine Lab includes an automotive wiring and circuit workspace. The Electrical Hub simulators are deliberately smaller and more focused.