Question

. A copper atom consists of copper nucleus surrounded
by 29 electrons. The atomic weight of copper is 63.5 g
mole-. Let us now take two pieces of copper each
weighing 10 g. Let us transfer one electron from one piece
to another for every 100 atoms in that piece. What will be
the coulomb force between the two pieces after the transfer
of electrons, if they are 1 cm apart?
Given, Avogadro number = 6 x 1023 mole-1,
charge on an electron = -1.6 x 10-19 C. (Roorkee, 1980)
[Ans. 2.06 x 1018 N (attractive)]
hive
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Answer 1

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Answer 2

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