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Why does an ebonite rod get negatively...

Why does an ebonite rod get negatively charged on rubbing with fur ?

Text Solution

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This beacause electrons in fur are less tightly bound than electrons in fur are less tightly bound than electrons in ebonite rod.
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Both the ebonite rods were charged by rubbing with fur. They also acquired ................. charges.

Knowledge Check

  • Assertion : When we rub a glass rod with silk, the rod gets positively charged and the silk gets negatively charged. Reason : On rubbing, electrons from silk cloth move to the glass rod.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • Suppose a rod is given a negative charge by rubbing it with wool. Which one of the following statements is correct in this case?1

    A
    The positive charges are transferred from rod to wool
    B
    The positive charges are transferred from wool to rod
    C
    The negative charges are transferred from rod to wool
    D
    The negative charges are transferred from wool to rod

  • When an ebonite rod is robbed with fur, the charge acquired by the fur is

    A
    negative
    B
    positive
    C
    neutral
    D
    none of these

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    If the metal clip used in the electroscope is replaced by an ebonite rod and a charged body is brought in contact with it, will there be any effect on the aluminium strips? Explain.

    Explain why, a glass rod can be charged by rubbing when had by hand but an iron rod cannot be charged by rubbing, if held by hand.

    Which of the following does not form negatively charged sol ?

    The identical metal spheres A and B are supported on insulating stands and placed in contact . What kind of charges will A and B develop when a negatively charged ebonite rod is brought near A ?

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