Electric field due to a point charge:

$\overline{){\mathbf{E}}{\mathbf{=}}\frac{\mathbf{k}\mathbf{q}}{{\mathbf{r}}^{\mathbf{2}}}}$

r_{A} = r_{C} = (6^{2} + 8^{2})^{(1/2)} = 10 cm(1m/100cm) = 0.1 m

r_{B} = 6 cm(1m/100cm) = 0.06 m

1 μC = 10^{-6} C

θ_{A} = θ_{B} = tan^{-1} (y/x) = tan^{-1} (8cm/6cm) = 53.1°

Three negative point charges lie along a line as shown in the figure.

Find the magnitude of the electric field this combination of charges produces at point P, which lies 6.00 cm from the -2.00 μC charge measured perpendicular to the line connecting the three charges. (E = N/C)

Find the direction of the electric field this combination of charges produces at point P, which lies 6.00 cm from the -2.00 μC charge measured perpendicular to the line connecting the three charges. outward or inward -2.00 μC?

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