Magnitude and Direction of Electric Point Charges

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1. 1: Suppose eight identical point charges q are placed at the corners of a cube with side length L.
Find the magnitude and direction of the electric force produced exerted by these charges on another
charge q at the center of a face of the cube.




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3. So far I've drawn a picture of the situation in 3D, but I'm not sure how to proceed
from there.
 

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Andrew Mason
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1. 1: Suppose eight identical point charges q are placed at the corners of a cube with side length L.
Find the magnitude and direction of the electric force produced exerted by these charges on another
charge q at the center of a face of the cube.




Homework Equations





3. So far I've drawn a picture of the situation in 3D, but I'm not sure how to proceed
from there.
Can you draw a vector representing the force of one charge on the charge at the centre? (hint: can you apply Coulomb's law to determine the magnitude and direction of the force?). Do that for all 8 charges and add up the vectors.

AM
 

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