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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.
Physics
Grades 8 – 12
Author: Dr. Stonawski Tamás
Reviewer: Trauer János
Graphic designer: Gyulai Kamilla
Developer: Tóth Martin
Keywords
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