Coulomb's Law multiple charges at specified set of points

[greenheck]

Homework Statement

View attachment ECE_220_Matlab_Problem_1.pdf

Homework Equations

E = (q(R-R')) / (4*pi*epsilon*|R-R'|^3)

The Attempt at a Solution

Ignore the MATLAB part of the problem .. i can do that easily.

I just need a head start ... so should i first calculate the E between the specified set of points and each of the 10 charges, then average it out to get the avg E for the first set? or should i find the average R between the 10 charges ( i can use that value for all 3 sets of coords) then subrtact R' (the set of coords) from it then etc?

Thanks for the help.

 

[berkeman]

Homework Statement

View attachment 23876

Homework Equations

E = (q(R-R')) / (4*pi*epsilon*|R-R'|^3)

The Attempt at a Solution

Ignore the MATLAB part of the problem .. i can do that easily.

I just need a head start ... so should i first calculate the E between the specified set of points and each of the 10 charges, then average it out to get the avg E for the first set? or should i find the average R between the 10 charges ( i can use that value for all 3 sets of coords) then subrtact R' (the set of coords) from it then etc?

Thanks for the help.

Welcome to the PF. Just use the superposition of the E fields from each individual charge.

 

[ramy_wonted]

thanks