BTEC National Engineering — Unit 1 Section E: Electrical Formulae
Click any yellow variable in the formula to transpose it • Adjust sliders to calculate the result
Author: ryanmay@exe-coll.ac.uk
E1 — Static & DC Electricity
E2 — DC Circuit Theory
E3 — DC Networks
F — Magnetism & Induction
G — Single-Phase AC
Transposition Board — click any yellow variable to rearrange
⚠ The negative sign is due to Lenz's Law — the induced quantity opposes the change that causes it.
Magnitudes used here are always positive; the sign is a physical convention.