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Magic pencil III
The resistance of a graphite pencil changes when it is bent. This experiment demonstrates the role of mechanical effects, hysteresis, and microcracks in the electrical conductivity of materials.
Fizika
8.-12. klase
Autors: Dr. Stonawski Tamás
Korektors: Trauer János
Grafiskais dizaineris: Gyulai Kamilla
Programmētājs: Tóth Martin
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