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Sagot :
Each electron has a negative charge of 1.6*10^-19 coulomb
So the 20 electrons will have a charge of = 20 *-1.6*10^-19 = -32 *10^-19 coulomb.
So the 20 electrons will have a charge of = 20 *-1.6*10^-19 = -32 *10^-19 coulomb.
Answer:
Charge, [tex]q=3.2\times 10^{-18}\ Coulombs[/tex]
Explanation:
We have to find the charge of a body that carries 20 extra electrons. We know that change on an electron is equal to :
[tex]e=1.6\times 10^{-19}\ Coulombs[/tex]
Using conservation of charge i.e. q = n e
n is number of electrons. Here, n = 20........(1)
Charge of a body that carries 20 excess electrons can be calculated equation (1).
So, charge [tex]q=20\times 1.6\times 10^{-19}\ Coulombs[/tex]
[tex]q=3.2\times 10^{-18}\ Coulombs[/tex]
Hence, this is the required solution.
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