A hollow conductor is positively charged. A small uncharged metal ball is lowered by a silk thread (insulating material) through a small opening in the top of the conductor and allowed to touch its inner surface. After the ball is removed, it will have: A. A positive charge B. A negative charge C. A charge whose sign depends on where the small hole is located in the conductor D. A charge whose sign depends on what part of the inner surface it touched E. No appreciable charge

Option (E) is the correct answer.

Explanation:

Since, the conductor is hollow which means that it is opened on both the ends. Hence, when a small uncharged metal ball is passed through it with the help of a silk thread then due to the presence of this insulating thread the ball will not come directly in contact with the charged rod.

As a result, there will occur no formation of opposite charge on the metal ball. Therefore, the ball will remain uncharged in nature.

Thus, we can conclude that after the given ball is removed, it will have no appreciable charge.

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explanation:

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