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A glass rod rubbed with slik is brought ...

A glass rod rubbed with slik is brought close to two uncharged metallic spheres in contact with each other, inducing charges on them..
Describe what happens when
(i) the spheres are slightly separated and
(ii) the glass rod is subsequently removed and finally
(iii) the spheres are separated far apart.

Text Solution

AI Generated Solution

To solve the problem step by step, let's analyze what happens in each of the three scenarios described in the question: ### Step 1: Induction of Charges on the Spheres When a glass rod, which has been rubbed with silk, is brought close to two uncharged metallic spheres that are in contact with each other, the following occurs: - The glass rod acquires a positive charge due to the rubbing process. - The positive charge of the glass rod induces a separation of charges in the metallic spheres. The side of the spheres closest to the rod becomes negatively charged (due to the attraction of electrons from the spheres), while the side farthest from the rod becomes positively charged (due to the deficiency of electrons). ### Step 2: Slight Separation of the Spheres ...
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Knowledge Check

  • Two uncharged metal spheres, L and M, are in contact A positively charged rod is brought close to L, but not touching it, as shown. The two spheres are slightly separated and the rod is then withdrawn. As a result:

    A
    L is positive and M is negative
    B
    both spheres are positive
    C
    both spheres are negative
    D
    L is negative and M is positive

  • A glass rod rubbed with a silk cloth and an ebonite rod rudded with fur will _______ each other when brought close.

    A
    Repel
    B
    Attract
    C
    Neutral
    D
    None of these

  • Two isolated metal spheres are identical. They are electrically neutral and are touching. An electrically charged rod is then brought near the spheres without touching them, as the drawing shows. After a while, with the rod held in place, the spheres are separated, and teh rod is then removed. The following statements refere to the mases m_(A) and m_(B) of the spheres after they are separated and the rod is removed. Which of the follownig statements is true?

    A
    `m_(A)=m_(B)`
    B
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    C
    `m_(A)gtm_(B)` if the rod is negative
    D
    `m_(A)gtm_(B)` irrespective of the charge (+ve or -ve) on the rod

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