(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

In the figure below d = 2.6 cm. What is the electric field at the position indicated by the dot in the figure?

2. Relevant equations

E = charge/4*pi*epsilon_0*distance^2

The figure is on the attachment.

3. The attempt at a solution

I decided to first find only the magnitude from each of the fields on the point.

charge 1 = 10 nC;

charge 2 = 5 nC;

charge 3 = -5nC

*I put all of the charges into Coulomb before any calculations

E1 = Kc1/5d^2;

E2 = Kc2/d^2;

E3 = kc3/4d^2;

After adding all of the Es together I get the wrong answer (as far as magnitude).

Answer is: 7.9 × 104 N/C, at 5.2° below the horizontal

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# Finding the electric field magnitude, and angle below the horizontal

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