Struggling with a concept in regards to electric fields

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To determine the electric field at a specific point due to two charges, the principle of superposition is applied, allowing the individual electric fields from each charge to be added vectorially. The electric field created by the +4N/C charge can be calculated using the formula kq1/r1, while the field from the -2N/C charge uses kq2/r2. The resultant electric field at the point of interest is the vector sum of these two fields. A sketch of the arrangement can help visualize the direction and magnitude of the electric field vectors. Properly applying these concepts will yield the complete electric field acting on the point.
Shinwasha
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So I'm trying to figure out the electric field that is acting on a point. This point is .3 m right of a point charge with -2N/C and .8m from a point charge with +4N/C. I've drawn it out, and realize both will have an impact on this object. what the issue I'm having is figuring out a formula to use. I would expect that taking the electric field that the +4N/C charge creates using kq1/r1 and then adding the field the second creates kq2/r2 would then give me the complete field. Would this be correct?
 
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There is a principle of superposition in electrostatics, which means fields of different charges can be added together (vectorially) to get the resultant field.
 
Shinwasha said:
So I'm trying to figure out the electric field that is acting on a point. This point is .3 m right of a point charge with -2N/C and .8m from a point charge with +4N/C. I've drawn it out, and realize both will have an impact on this object. what the issue I'm having is figuring out a formula to use. I would expect that taking the electric field that the +4N/C charge creates using kq1/r1 and then adding the field the second creates kq2/r2 would then give me the complete field. Would this be correct?

Please post a sketch of the arrangement, and show how you added the Electric field vectors at the point of interest...
 
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