Formula trainer
Move the numbers and watch the maths breathe.
Practise core formulas with sliders, result notes, safety prompts, and direct links to the matching calculators.
Safety first, always.
ElectroLab AI teaches theory, low-voltage electronics, and planning concepts. Mains voltage, switchboards, fixed wiring, high-current systems, and legal electrical work must only be performed by licensed electricians where required.
Open Safety CenterFormula trainer
Ohm's Law
Estimate current before powering an LED, coil, sensor, or small load.
Write the formula before touching the calculator.
Check the number with the matching calculator.
Measure the low-voltage circuit and compare expected vs actual.