Charge sniffer for electrostatics demonstrations
| Autor: | Mihai P. Dinca |
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| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | American Journal of Physics. 79:217-221 |
| ISSN: | 1943-2909 0002-9505 |
| DOI: | 10.1119/1.3531961 |
| Popis: | An electronic electroscope with a special design for demonstrations and experiments on static electricity is described. It operates as an electric charge sniffer by detecting slightly charged objects when they are brought to the front of its sensing electrode. The sniffer has the advantage of combining high directional sensitivity with a logarithmic bar display. It allows for the identification of electric charge polarity during charge separation by friction, peeling, electrostatic induction, batteries, or secondary coils of power transformers. Other experiments in electrostatics, such as observing the electric field of an oscillating dipole and the distance dependence of the electric field generated by simple charge configurations, are also described. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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