Recent content by DietRichCola

so would that mean that the value of q would be -Q ? i know q =/= Q because then the charges would all repel each other. if i plug one equation into the other, like: q = -2(-2q*sqrt(2))sqrt(2), i just get that q=8q. which is why i think there can't be a value for q. though, i don't know the...

Since it's a square, the charge for q would be the same formula as it was for Q, just the Q and q are switched: q = -2Qsqrt(2)

that's good. do you know about part (b) ?

i saw the equation: (1/(4*pi*E))((Qq)/(a^2)) as the force on one of the sides of the square between Q and q. and i know there's another force pointing perpendicular on the adjacent side of the square. the addition of those two vectors would give me the hypotenuse of a 45-45-90 triangle...

the distance of the side of the square is a, so the diagonal is a*sqrt(2)

Homework Statement A charge Q is fixed at each of two opposite corners of a square, while a charge q is fixed at the other two corners. (a) if the resultant electrical force on Q is zero, how are Q and q related? (b) could q be choosen to make the resultant electrical force on every charge...