Answer to Question #349692 in Physics for Kelly Joe

Question #349692

A force 1500N exists between two identical point charges separated by a distance of 30cm. Calculate the magnitude of the two point charges.

Expert's answer

"F=k\\frac{q_1q_2}{r^2}=k\\frac{q^2}{r^2}"

"q=\\sqrt{Fr^2\/k}\\\\\n=\\sqrt{1500*0.3^2\/9*10^9}=1.2*10^{-4}\\:\\rm C"

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