2026 NEC · Module 1
Definitions, Theory & Plans
Code Definitions · Electrical Theory · Plan Reading
4lessons · ~17 min
61questions
6%of the exam
01How the 2026 NEC Is Organized — and How to Find Anything in Under a Minute4 min · public preview02Article 100 — The Definitions the Exam Actually Tests5 min · public preview03Electrical Theory for the Exam: Ohm's Law, Power, Series/Parallel, Three-Phase4 min · public preview04Reading Electrical Plans: Symbols, One-Lines, Panel Schedules and the Spec Book4 min · public preview
Take the free examThe whole module opens with the $9 pass.
Not affiliated with PSI, TDLR, NFPA.