Answer to Question #304804 in Electricity and Magnetism for msbubbles

Question #304804

Two identical charges, 3.0 m apart, exert forces of magnitude 5.0 N on each other. What is the value of either charge?


1
Expert's answer
2022-03-02T14:41:11-0500

Force

F=kq1q2r2F=\frac{kq_1q_2}{r^2}

F=kq2r2F=\frac{kq^2}{r^2}

q=Fr2kq=\sqrt\frac{Fr^2}{k}


q1=q2=q=5×99×109=70.71μCq_1=q_2=q=\sqrt\frac{5\times9}{9\times10^9}=70.71\mu C


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