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7 October, 04:59

Hanging by a thread. Two metal spheres hang from nylon threads and attract each other when brought close together. (i) What can you say about the charges on the two spheres? (ii) The spheres are now brought into contact. Will they continue to attract each oth

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  1. 7 October, 07:40
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    Explanation:

    i) Two spheres hanging from nylon threads attract each other because either the two spheres are charged with opposite sign or only one of the spheres is charge so the other would be charge by induction of the charged sphere and hence attract each other.

    ii) However, when they are touched the charges will be rearranged among the two sphere such that the two sphere have exact same magnitude and sign of charge and now they will repel each other or the magnitude of charges on the two spheres become zero and they neither attract or repel each other.
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