Answer to Question #343279 in Physics for mary

Question #343279

Calculate the electric field strength from a 1.25x10-8C charge if the test

charge is placed 2.50x10-5m.

Expert's answer

"E=k\\frac{q}{r^2}"

"E=9*10^9*\\frac{1.25*10^{-8}}{(2.50*10^{-5})^2}=1.8*10^{11}\\:\\rm N\/C"

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