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Asked By :  Steve Kennedy
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The leaves of a metal leaf electroscope are slightly separated

The leaves of a metal leaf electroscope are slightly separated, indicating that it is charged. When you bring a positively charged rod near the sphere, the leaves spread farther apart. What charge is on the electroscope? Draw diagrams to explain your answer.




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Answer:

The charge on the electroscope is positive.


Explanation:

  1. Initial State of the Electroscope:

    • The leaves of the electroscope are slightly separated, which indicates that the electroscope is already charged.
    • Since bringing a positively charged rod near the electroscope causes the leaves to spread farther apart, the electroscope must already have a positive charge.
  2. Effect of the Positively Charged Rod:

    • A positively charged rod near the sphere of the electroscope repels positive charges in the electroscope (like charges repel).
    • This repulsion forces even more positive charge toward the leaves, increasing the separation between the leaves.
  3. Conclusion:

    • The electroscope was initially positively charged because the positive rod caused further repulsion and an increase in the separation of the leaves.

Diagram Explanation (to Draw):

  1. Initial State:

    • Show the electroscope with positive charges distributed throughout the sphere, stem, and leaves.
    • The leaves are slightly separated due to like charges.
  2. When the Positive Rod is Brought Near:

    • Indicate that the positive charges in the sphere are repelled further down toward the stem and leaves.
    • This increases the concentration of positive charge in the leaves, causing them to spread farther apart.

Answered By

Wayne Rooney

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