Datoteka:Electroscope_showing_induction.png
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![Datoteka:Electroscope showing induction.png](http://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Electroscope_showing_induction.png/699px-Electroscope_showing_induction.png)
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Sažetak
OpisElectroscope showing induction.png |
English: Drawing of a gold leaf electroscope, an antique scientific instrument invented in 1787 by British clergyman Abraham Bennett that detects electric charge. It consists of a pair of delicate gold leaves hanging parallel to each other from a brass post, protected by a glass jar. The brass post projects from the mouth of the jar and ends in an electrode to which charged objects can be applied. When a charge is applied to the post, the leaves, carrying the same charge, repel each other, and diverge into a "V" shape. This example shows electrostatic induction of charge in the instrument by holding a charged dielectric rod near it. The positive charge on the rod causes the mobile charges in the brass post to separate, with negative charges being attracted into the top electrode, while positive charges are repelled into the leaves, causing them to separate. Alterations to image: Added colored plusses and minuses showing areas of charge. |
Datum | |
Izvor | Downloaded from Sylvanus P. Thompson (1881) Elementary Lessons in Electricity and Magnetism, MacMillan, New York, p.16, fig. 12 |
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Dopuštenje (Naknadna uporaba ove datoteke) |
Public domain - published in US prior to 1923 |
Licencija
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Datum/Vrijeme | Minijatura | Dimenzije | Suradnik | Komentar | |
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sadašnja | 21:32, 30. travnja 2008. | ![]() | 797 × 684 (37 KB) | Chetvorno | {{Information |Description=Woodcut of gold leaf electroscope, showing induction of charge. Alterations to image: Added colored plusses and minuses showing areas of charge. |Source=Copied from Sylvanus P. Thompson (1881) ''Elementary Lessons in Electricit |
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