2. Knowledge of electricity
2.1 Quality plan
2.1.1 Electrification phenomenon
The mechanical concepts defined above are essential for understanding electrical phenomena.
Apart from lightning, electricity has also been the subject of some fascinating experiments. The oldest known phenomenon results from rubbing amber with a dry cloth, which gives amber the property of attracting light bodies such as feathers, straw or small pieces of paper. This fact was reported by Greek authors seven centuries before Christ. In...
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Knowledge of electricity
The basics
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