Let k denote 1/4 $\pi$ .The magnitude of the electric field at a distance r from an isolated point charge q is: A)kq/r B)kr/q C)kq/r³ D)kq/r² E)kq²/r²

Question

Quizplus · Accepted Answer

The magnitude of the electric field at a distance r from an isolated point charge q is given by Coulomb's law, which is $E = \frac{kq}{r^2}$. This corresponds to choice D, where $kq/r^2$ is the correct formula.

Let K Denote 1/4 π\piπ The Magnitude of the Electric Field at a Distance R

Let K Denote 1/4 $\pi$ The Magnitude of the Electric Field at a Distance R