(a) If rabbit fur is rubbed against glass, what is the sign of the charge each a
ID: 1686323 • Letter: #
Question
(a) If rabbit fur is rubbed against glass, what is the sign of the charge each acquires?(b) Repeat part a for the case of glass and rubber.
(c) comparing the situations described in parts a and b, in which case is the magnitude of the triboelectric charge greater?
I am unclear on the wording of part B. Are we supposed to compare glass and rubber individually against fur (because the book only referenced rubbing things against fur) or are we supposed to rub glass and rubber together? The table in the book gives the appropriate information to deduce what the charges of each will be no matter which way you do it.
Explanation / Answer
a] positive charge for rabbit fur and negative charge for glass b} glass acquires positive charge and rubber acquires negative charge. c]WHEN GLASS IS RUBBED AGAINST RUBBER ' then magnitude of triboelectric charge greater. RULE : Materials are often listed in order of the polarity of charge separation when they are touched with another object. A material towards the bottom of the series, when touched to a material near the top of the series, will attain a more negative charge, and vice versa. The further away two materials are from each other on the series, the greater the charge transferred. Materials near to each other on the series may not exchange any charge, or may exchange the opposite of what is implied by the list.
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