Electric field intenstity of a cube

AI Thread Summary
The discussion revolves around calculating the electric field intensity at various points (the center, a face, and an edge) of a cube formed by eight point charges of 1ηC each located at its corners. Participants emphasize the importance of starting the problem by applying the equation for the electric field due to a single charge and summing the contributions from all charges, taking into account their vector nature. The symmetry of the cube is highlighted as a useful aspect to simplify calculations. Guidance is provided to encourage participants to attempt the problem independently before seeking specific help. The conversation aims to assist in understanding the application of electric field concepts in a structured manner.
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Homework Statement



Eight point charges of 1ηC each are located at the corners of a cube in free space that is 1m on a side.Find |E| at the centre of a)the cube b)a face c)an edge.
Can someone please help me with the solution of this problem??..

Homework Equations





The Attempt at a Solution

 
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Welcome to PF;
It helps if you try to do a bit first, then we can target the specific area you need help.

To get started - you know the equation for the field due to a single charge - you just add them up for all the charges, remembering that \vec{E} is a vector.
Hint: you can use the symmetry of the cube, with the fact that each corner has the same charge, to simplify the problem.
 

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