SCI-FACTS Learning Path
Electrical Engineering
Build a clear foundation in circuits, semiconductor physics and transistor technology. The chapters are arranged as a learning path—from voltage and current to modern electronic devices.
Start with the fundamentals
Choose a chapter below. Each topic includes definitions, physical intuition, important equations and practical examples.
Electrical Engineering Fundamentals
Voltage, current, resistance, power, Kirchhoff's laws and the first circuit calculations.
Explore chapter → 02 · PHYSICSSemiconductor Physics
Energy bands, charge carriers, doping and the pn junction explained step by step.
Explore chapter → 03 · DEVICESTransistor Fundamentals
How BJTs, JFETs and MOSFETs control current—as switches and as amplifiers.
Explore chapter → 04 · PRACTICECircuits & Applications
Biasing, amplifier stages, switching circuits and examples that connect theory with practice.
Explore chapter →Recommended learning order
- Understand voltage, current and simple networks.
- Learn how solids create conductors and semiconductors.
- Study pn junctions and transistor operating principles.
- Apply the concepts in real circuits.
Advanced Topics
Vacuum tubes and JFETs, the development from BJT to CMOS, and detailed pn-junction behavior.
Explore advanced material →Educational content only. Work on mains-powered circuits requires appropriate training and safety precautions.