Homework, electric field strength at centre of a square

AI Thread Summary
Four charges of +5µC, +3µC, -4µC, and +2µC are positioned at the corners of a square with a side length of 2m, requiring the calculation of electric field strength and potential at the center. Relevant equations include the force equation F=1/4π * Q1Q2/r² and the electric field equation E=Q/4πr². Participants are encouraged to apply these equations and create a diagram to aid in visualizing the problem. The discussion emphasizes the importance of systematic problem-solving in physics. Continued engagement and exploration of the topic are encouraged.
JR9
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Homework Statement


4 charges of +5µC, +3µC, -4µC and +2µC form the 4 points of a square of side length 2m. Calculate the field strength and potential at the centre of the square.

Homework Equations


F=1/4π[PLAIN]http://upload.wikimedia.org/math/d/3/c/d3c305fc416b971cd6d284564e51bf85.png[SUB]0[/SUB] X Q1Q2/r2
E= Q/4π[PLAIN]http://upload.wikimedia.org/math/d/3/c/d3c305fc416b971cd6d284564e51bf85.png[SUB]0[/SUB] r2

The Attempt at a Solution


?
 
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JR9 said:

Homework Statement


4 charges of +5µC, +3µC, -4µC and +2µC form the 4 points of a square of side length 2m. Calculate the field strength and potential at the centre of the square.

Homework Equations


F=1/4π[PLAIN]http://upload.wikimedia.org/math/d/3/c/d3c305fc416b971cd6d284564e51bf85.png[SUB]0[/SUB] X Q1Q2/r2
E= Q/4π[PLAIN]http://upload.wikimedia.org/math/d/3/c/d3c305fc416b971cd6d284564e51bf85.png[SUB]0[/SUB] r2

The Attempt at a Solution


?

Welcome to the PF. Keep going! Use those equations and draw a figure... :-)
 
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