Question

# Find the potential at point P for the rectangular grouping of charges (q1 = -8.51 uC,...

Find the potential at point P for the rectangular grouping of charges (q1 = -8.51 uC, q2 = 11.1 uC, q3 = 8.51 uC, L1 = 0.163 m and L2 = 0.376 m) as shown in the figure below.

I got this answer (510434.7709 V) and it tells me its incorrect!

I have solved this question earlier with different figures. Please workout using yours figures. If you need any further help just PM me. If I have helped you please rate me 5 stars first (before you rate anyone else)

Find the potential at point P for the rectangular grouping of charges (q1 = -8.75 uC, q2 = 12.1 uC, q3 = 8.75 uC, L1 = 0.185 m and L2 = 0.318 m) as shown in the figure below.

Potential is not a vector jus a scalar so the net potential is the sum of all potentials

V=kq/r
V = kq1/L2 + kq2/d + kq3/L1
d=sqrt(0.185^2 + 0.318^2) = 0.368
V=k(-8.75E-6/0.318 + 12.1E-6/0.368 + 8.75E-6/0.185)
V= 473432 V

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