Answer to Question #194843 in Physics for Mahmood

Question #194843

A disk of radius 3m contains a total charge 480 n

Expert's answer

"\\rho=\\frac{q}{\\pi r^2}\\\\\\rho=\\frac{450\\cdot10^{-9}}{\\pi (3)^2}=1.6\\cdot10^{-8}\\frac{C}{m^2}"

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