Answer to Question #308605 in Physics for Mark

Question #308605

What is the electric field at a distance of 10 cm from an isolated point charge of

2 x 10 -9 C?

With solution please?

Expert's answer

The electric field due to the point charge

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

So

"E=9*10^9*\\frac{2*10^{-9}}{0.1^2}=1800\\:\\rm N\/C"

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