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- New Wiring lessons with animated diagrams - Quiz Topics grouped by your standard - Report wrong questions or articles - Dark and light themes are now free for everyone
Electrical training for electricians: NEC quizzes, study plans & simulator
Learn electrical work the way you wire it. Electrician App by VoltageLab is an electrical training app for electricians, apprentices and students, built around the NEC. Study wiring, grounding, motors, load calculations and electrical theory with study plans, quizzes, guides, videos and a circuit simulator. STUDY PLANS Type a topic such as grounding and bonding, conduit fill or motor protection, and get a day-by-day plan. Each day has short lessons and a quick check at the end, so you always know what to study next. QUIZZES THAT EXPLAIN THE ANSWER Practice questions on any electrical topic, from Ohm's law to branch circuits. Every answer comes with a clear explanation and the code section it is based on, so you learn why, not just what. ELECTRICAL GUIDES AND DIAGRAMS Illustrated guides on wiring and installation, protection and grounding, control and switching, motors and transformers. Read a guide, then quiz yourself on it. Save guides to read offline on the job. CIRCUIT SIMULATOR Build circuits level by level. Place the battery, resistor and lamp, close the switch and watch voltage, current and resistance change. A safe way to understand electricity before you touch a live panel. VIDEO LESSONS WITH QUIZZES Watch electrical video lessons on motors, power systems and electrical machines. Short questions appear while you watch, so the key ideas stick. STUDY THE NEC SECTION BY SECTION Browse the code by area: definitions (Article 100), branch circuits (210), GFCI and AFCI protection, feeders (215), load calculations (220), services (230), overcurrent protection (240), grounding and bonding (250) and more. Each area is broken into quiz topics with their code references. FLASHCARDS Create a flashcard deck on any topic in seconds: voltage drop, ampacity, conductor sizing, electrical formulas. You can also build flashcards from your own notes, a PDF, a photo or a YouTube link. TIMED PRACTICE TESTS When you want a full run, take a timed practice test with multiple-choice and written questions, graded with worked answers. Useful for electrical licensing exam practice and for checking what you know. YOUR STANDARD, YOUR CODE Pick the standard you work under. The app is set up for the NEC and also supports the CEC, BS 7671, AS/NZS 3000 and IEC 60364, and quizzes, plans and answers follow your choice. TOPICS COVERED Electrical wiring and wiring diagrams, residential and commercial wiring, grounding and bonding, branch circuits and feeders, GFCI and AFCI protection, overcurrent protection, conduit fill, box fill, voltage drop, ampacity and conductor sizing, load calculations, services, motors and motor controls, transformers, three-phase power, Ohm's law and electrical formulas, electricity basics, AC and DC circuits, troubleshooting, solar PV and EV charging. BUILT FOR Electricians who want a quick daily refresher, electrical apprentices working through their training, journeyman and master candidates practicing for the licensing exam, electrical and engineering students, maintenance technicians, and anyone learning how electricity works. Free to download. Some features need a Pro subscription. Questions or ideas: support@voltagelab.com Privacy policy: https://www.voltagelab.com/electricpal-privacy-policy/