Coulomb's Law (Electric Force) Video Lessons

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Problem: (Figure 1) shows four charges at the corners of a square side L.What magnitude and sign of charge Q will make the force on charge q zero? 

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FREE Expert Solution

Forces involving electric charges is given by:

F=kq1q2r2

Summing perpendicular vectors:

F=Fx2+Fy2

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Problem Details

(Figure 1) shows four charges at the corners of a square side L.
What magnitude and sign of charge Q will make the force on charge q zero? 

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Based on our data, we think this problem is relevant for Professor Krishna & Weatherford's class at UF.