Answer to Question #307215 in Physics for rex

Question #307215

Compute the electric ﬁeld experienced by a negative test charge given the following conditions in a vacuum: a. Source charge: –4.33 × 10^–12 C Distance from source charge: 2.33 × 10^–5 m (Your answer must be in this format : 1.11x10^1 N/C, -1.11x10^-1 N/C)

Expert's answer

The electric field

E=k\frac{q}{r^2}\\ =9*10^9*\frac{4.33*10^{–12}}{(2.33*10^{-5})^2}=1.13*10^{12}\:\rm N/C

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