A negatively charged rod is touched by an uncharged electroscope. Which of the following statements is true when the rod is removed and the electroscope is grounded?

Positive charge flows from the electroscope to the ground.

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The positive charge flows from the ground to the electroscope.

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Negative charge flows from the electroscope to the ground.

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Negative charge flows from the ground to the electroscope.

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Solution

The correct option is C Negative charge flows from the electroscope to the ground.
The uncharged electroscope gets a negative charge when touched by the rod. When grounded, the negative charge flows to the ground due to earthing. Earthing is the process of discharging charges on a body to the Earth which acts like a giant sink.

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