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**I unploaded a picture describing this situation**

i dont know how to find the Potential difference in this situation

because there is two different objects. a charge and a plane.

on the plane we calculate the Potential difference

E*d=v1-v2

on the charge each potential calculates in V=Q/4pi*e0*r

to different things

please help !

problem description

there is an infinite plane whos charge densety is G

on a distance D we put a positve charge +Q

between this charge and the plane there is two point

A and B

point A is distant from the charge in X

point b is distant from the charge in 0.5X

how do i find the Potential difference

between these point?

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