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**1. Homework Statement**

Around a point charge there are three points: A, B and C. Determine the electric field vector for those points. Also, determine the force vector for q0 if it was in point B.

Q = 10 µC, a = 1 m, b = sqrt(3) m, q0 = 10 pC

**2. The attempt at a solution**

Here is the attempt at a solution, and here are the correct answers.

EDIT: I can't find what I'm doing wrong but I'm not sure how do I get Eb from Ebx and Eby.

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