Question

18. A negatively charged body is held near the cap of an uncharged gold leaf electroscope. The cap of the electroscope
is connected to the charged body with (a) a dry silk thread, (b) a copper wire. Draw diagram in each case to show the divergence of the leaves and the charge if any on the leaves​

Answer 1

Explanation:

When uncharged rod is touched on the disc of a negatively charged gold leaf electroscope, the divergence between the gold leaves decreases as unlike charges attract each other. It is to be noted that a charged body can also attract an uncharged body, so repulsion is the sure test to determine whether the body is charged or not.

When uncharged rod is touched on the disc of a negatively charged gold leaf electroscope, the divergence between the gold leaves decreases as unlike charges attract each other. It is to be noted that a charged body can also attract an uncharged body, so repulsion is the sure test to determine whether the body is charged or not.Therefore, when the uncharged rod is rolled on the disc of the negatively charged gold leaf electroscope, the electrons from the rod are transferred to the electroscope due to the negative charge and thus the rod becomes positively charged. Now the unlike charges attract each other and the divergence decreases.

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Answer 2

Answer:

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