(adsbygoogle = window.adsbygoogle || []).push({}); I know this problem is simple enough but I can't get the hang of it

Find the electric field at point A in the diagram if (a) q1=2.00 μC and q2=3.00 μC. (b) q1=2.00 μC and q2= -3.00 μC.

Thank you.

P.S. If you can explain how you solved the problem that would be great. I'd really like to know what it is that I'm doing.

1. The problem statement, all variables and given/known data

2. Relevant equations

(9E9)(2E-6)(3E-6)/(0.5)^2=0.216 but the text tells me the answer is 1.26E5 for (a) so I'm not sure how to go about this.

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# Superposition of Electric Fields

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