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Posted by Anonymous on Friday, January 18, 2013 at 12:16am.

An object has a charge of −2.4 ìC. How many electrons must be removed so that the charge becomes +2.8 ìC

N=(q1+q2)/e = (2.4+2.8)•10⁻⁶/1.6•10⁻¹⁹ = =3.25•10¹³

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