Electric field from two point charges

AI Thread Summary
The discussion centers on calculating the net electric force on a 1.00 µC charge located at a corner of an equilateral triangle with two other charges (6.50 µC and -4.20 µC). Participants express confusion about how to approach the problem and which equations to apply. The relevant equation for the electric field, E = ke q1/r1^2, is identified, but there is uncertainty about how to derive the force from it. Clarification is provided that the problem specifically asks for the force, prompting a reminder to consider the force equation. Understanding the distinction between electric field and force is crucial for solving the problem effectively.
goWlfpack
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Homework Statement


Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.00 µC charge.

(A = 1.00 µC, B = 6.50 µC, and C = -4.20 µC.)

magnitude N
direction ° counterclockwise from the +x-axis




Homework Equations





The Attempt at a Solution


I really have no idea where to even start.
 
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goWlfpack said:

Homework Statement


Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.00 µC charge.

(A = 1.00 µC, B = 6.50 µC, and C = -4.20 µC.)

magnitude N
direction ° counterclockwise from the +x-axis




Homework Equations





The Attempt at a Solution


I really have no idea where to even start.

What equations do you think applies?
 
I really don't know. I know that to find the electric field you use E=ke q1/r1^2 to find the E for the point. However i don't really know how to manipulate the equations to find the answers
 
goWlfpack said:
I really don't know. I know that to find the electric field you use E=ke q1/r1^2 to find the E for the point. However i don't really know how to manipulate the equations to find the answers

That is the equation for the E field, but they asked you for the Force.

What is the Force equation?
 

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