Answer to Question #308285 in Electricity and Magnetism for yengg

Electricity and Magnetism

Question #308285

What is the electric field strength at a point 40 cm from a charge of 5x10⁹ C?

Expert's answer

Electric field

$E=\frac{kq}{r^2}$

Put value

E=\frac{9\times10^9\times5\times10^9}{0.4^2}=2.82\times10^{20}N/C

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