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(A) The Coulomb force between two charges is given by $F = k \frac{|q_1 q_2|}{r^2}$.Here,$k = 9 	imes 10^9 \, N \cdot m^2/C^2$,$q_1 = q_2 = e = 1.6 \

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$2.3 	imes 10^{-8} \, N$

Vedclass · Answer

(A) The Coulomb force between two charges is given by $F = k \frac{|q_1 q_2|}{r^2}$.Here,$k = 9 	imes 10^9 \, N \cdot m^2/C^2$,$q_1 = q_2 = e = 1.6 	imes 10^{-19} \, C$,and $r = 1 \, \mathring{A} = 10^{-10} \, m$.Substituting the values:$F = 9 	imes 10^9 	imes \frac{(1.6 	imes 10^{-19})^2}{(10^{-10})^2}$$F = 9 	imes 10^9 	imes \frac{2.56 	imes 10^{-38}}{10^{-20}}$$F = 9 	imes 2.56 	imes 10^{9 - 38 + 20}$$F = 23.04 	imes 10^{-9} = 2.304 	imes 10^{-8} \, N$.Thus,the correct option is $A$.

Two electrons are separated by a distance of $1\,\mathring{A}$. What is the Coulomb force between them?

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