3. The basics
The fundamentals of electricity are essential for understanding and designing safe and efficient electrical installations in building and civil engineering. This section covers key concepts such as direct current, alternating current (single-phase and three-phase), voltage, current, resistance, Ohm's law, power and associated units of measurement.
3.1 Direct current
3.1.1 Characteristics, current direction and propagation speed
At the time of the first discoveries in electricity, direct...
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The basics
Electricity in practice
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