Showing 1–20 of 1,000 ranked alternatives.
Sergey Vavaev
Access theory, diagrams, and calculators offline
’s provides access to electrical theory topics, including exercises with answers. Features interactive diagrams for hands-on learning. Includes calculators and formulas for electrical calculations. Works offline without ads or subscriptions.
Mike Holt Enterprises Inc.
Size conductors, calculate voltage drop, select circuit
Provides conductor sizing calculations, circuit protection sizing, raceway sizing, and equipment grounding conductor sizing for heating and air-conditioning equipment.
Altaf Mogal
Study electrical theory and take mock tests
Study Electrical Theory, Safety Rules, Circuits, Motors, Transformers, and NEC codes. Take practice tests with random questions. Access mock exams for preparation. Track progress through practice and study modes.
Webrich Software Limited
Study NEC codes and prepare for exams
Study for NEC certification exams with practice tests, code references, and updates on 2023 NEC Code and 2024 changes. Track progress, review key concepts, and prepare for exams including F16, F17, G17, T17, and residential tests.
Blue Collar Labs Inc.
Practice NEC questions and track progress
Study for exams with practice questions, detailed explanations, and NEC code references. Track progress with personalized stats. Practice for Journeyman, Master Electrician, or Contractor exams.
1BIGRIG Ltd
Access calculators, safety guides, and checklists
Provides calculators for circuit design and load calculations. Includes safety references for UK electrical standards and BS 7671. Features checklists for installation and inspection tasks.
Nilu Rathod
Practice exams and review materials
Prepare for the exam with practice tests covering electrical theory, NEC, and local codes. Answer multiple-choice questions, review explanations, and track progress. Access study materials and simulate exam conditions for effective preparation.
Chuan Nguyen Van
Access wiring diagrams and technical docs
Access electrical wiring diagrams for car repair and study. View videos and technical documents for research. Update diagrams regularly for accurate information. Navigate through a library of resources with simple clicks.
David Neel
Look up NEC codes and practices
Access NEC code and practices with AI-driven answers. Search for specific installations, check compliance, and receive expert advice. View detailed diagrams and compare code versions. Save notes and organize queries for easy reference.
V PUGAZHENTHI
Calculate voltage, current, and resistance
Calculate values using resistor color codes, voltage, current, and resistance formulas. Perform impedance and RLC circuit analysis. Input values to get accurate results for engineering, wiring, and circuit design tasks.
1BIGRIG Ltd
Calculate , active , and reactive
Calculate , Active , or Apparent using the formulas PF = P ÷ S, P = PF × S, and S = P ÷ PF. Enter any two values to instantly compute the third. Perform electrical efficiency calculations with precise mathematical relationships.
Shenzhen New Beginning Internet Co., Ltd
Study for exams and track progress
Study for the Journeyman with practice tests, flashcards, and detailed study guides. Review electrical codes and safety procedures. Track progress and receive performance feedback.
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