Electrostatics Question 684

Question: The metal knob of a gold leaf electroscope is touched with a positively charged rod. When it is taken away the leaves stay separated. Now the metal knob is touched by negatively charged rod. The separation between the leaves

Options:

A) increases

B) decreases

C) remains same

D) first increases then decreases.

Show Answer

Answer:

Correct Answer: B

Solution:

[b] On touching the metal knob with a positively charged rod some electrons from the gold leaves get transferred to the rod making gold separated. When a negatively charged rod charge flows to the gold leaves lessening the positive charge there and the separation between the leaves decreases.



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