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Three spherical surface charges σ1, σ2 and σ3 are arranged concentrically around the origin of a...

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Electrical Engineering

Three spherical surface charges σ1, σ2 and σ3 are arrangedconcentrically around the origin of a Cartesian coordinate systemwith the radii r1, r2 and r3.
It applies σ1=(-2Q)/(4πr1^2), σ2=(+2Q)/(4πr2^2) andσ3=(-2Q)/(4πr3^2), where Q >0 describes an initially unknownamount of charge. Furthermore, the following applies in the entireroom: ε=ε0

A point charge with the charge +Q is located at a point with thedistance R to the origin. R > r3 applies.
Determine the force F, which acts on the point charge due to theelectric field, according to magnitude and direction.

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Please go through the theory part    See Answer
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