How does an electroscope detect the …
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Posted by Lavanya Sondhi 6 years, 9 months ago
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Yogita Ingle 6 years, 9 months ago
An electroscope is a device for detecting, measuring & finding the nature of a charge.An electroscope consists of a large jar. A metal rod is fitted into the mouth of the jar with the help of the cork. At the lower end of the metal rod a pair of thin leaves of gold or aluminium is suspended.
Charge the electroscope with a known charge, say with negative charge, by touching a negatively charged ebonite rod to the metal disc of the electroscope. The leaves of the electroscope open up (diverge).
Now touch the body to be tested with the metal disc of the charged electroscope.
* If the divergence of the leaves increases, the body has similar charge that is the given body is also negatively charged.
* If the divergence of the leaves decreases, the body has unlike charge that is the given body is positively charged.
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