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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.

物理

成绩8 – 12

作者: Dr. Stonawski Tamás

审稿人: Trauer János

图形的: Gyulai Kamilla

程序员: Tóth Martin

关键词

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