In: Electrical Engineering
Three spherical surface charges σ1, σ2 and σ3 are arranged
concentrically around the origin of a Cartesian coordinate system
with the radii r1, r2 and r3.
It applies σ1=(-2Q)/(4πr1^2), σ2=(+2Q)/(4πr2^2) and
σ3=(-2Q)/(4πr3^2), where Q >0 describes an initially unknown
amount of charge. Furthermore, the following applies in the entire
room: ε=ε0
A point charge with the charge +Q is located at a point with the
distance R to the origin. R > r3 applies.
Determine the force F, which acts on the point charge due to the
electric field, according to magnitude and direction.
Please go through the theory part where concepts are written and as applied to the given problem....
Vector values are used in answer...
Also take in consideration of the assumption made.