Calculate, how many electrons are in -80 micro coulomb of electric charge.
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The formulae of charge is columb. Q = ne' where n is no of electons and e is the charge of an electron . So Here we saw that Charge is 1 microcolumb and 1 microcolumb is identical to 1*10 to the power -6. so 1*10^-6=1.6*10^-19*n So n=624*10^-10.
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