gold leaf electroscope

圖片參考:http://imgcld.yimg.com/8/n/HA06578099/o/7011092300...

answer the above questions?

1 Answer

Rating
  • 天同
    Lv 7
    9 years ago
    Favorite Answer

    Statement (1) is right.

    When the charged sphere in put inside the container, its +ve charges raise the potential of the container and the electroscope. Hence, the gold-leaf diverges. When the sphere touches the botom of the container,all its +ve charges is conducted to the outside of the container. After the sphere is left, the +ve charges on the container provides a potential for the gold leaf to remain divergent.

    Statement (2) is right.

    As said in above, when the sphere touches the bottom of the container, all its +ve charges are conducted to the outside of the container. Thus the sphere becomes neutral.

    Statement (3) is wrong.

    Since the container is a conductor, all charges are residing on its outside. There is no charge on the inside of the container.

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