Using the equation E= (kq)/(R)^2 in the r direction. I am confused on when to make the vector negative in my equations. For instance if you had a charge on x=0 and x=5 (on the x axis) and then you want to find the field at point (1,1) or something like this.(adsbygoogle = window.adsbygoogle || []).push({});

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# Homework Help: Question about vectors with electric field equations

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