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24 January, 04:42

A student is given a small object that is hanging from a ring stand on a nylon thread. The student attempts to charge the object electrically in several ways. Based upon his results, he concludes the object is made of an insulating material. Which set of results must he have collected?

A. The object could be charged only by contact.

B. The object could be charged by either contact or induction.

C. The object could be charged by either contact or polarization.

D. The object could be charged only by polarization.

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Answers (1)
  1. 24 January, 08:37
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    Answer: (a)

    Explanation:

    Student must have known that insulators can only be charged when they are rubbed against each other. In this process, one becomes electrically negative while other becomes electrically positive such that both have the same magnitude. The one which gains electrons becomes electrically negative due to the transfer of electrons while others lose the electron becomes positive due to the transfer of an electron to another body.
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