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00:02:00

Electrical Conduction

by John Murrell
Electrical Conduction
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1880 views
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00:03:00

Piezoelectricity

by Jonathan Hare
Piezoelectricity
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1941 views
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Some minerals such as quartz can produce electricity simply by squeezing or bending them - these are called piezoelectric crystals. Here is a simple and cheap demonstration you can do.

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