Asked by rawand

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Figure 22-21 shows two square arrays of charged particles. The squares with edges of 2d and d are centered at point P and are misaligned. The particles are separated by either d or d/2 along the perimeters of the squares.
What is the magnitude of the net electric field at P? (Note: The symbol used in the subscript of ε0 is a zero, not an "O".)?

Answers

Answered by Elena
Net electric field due to all charges exept the charges at the midpoints of vertical sides of the large square is zero. These two charges gives:
E=(1/4πε₀)•(2q)/(d/2)² - (1/4πε₀)•(q)/(d/2)²= (1/4πε₀)•(q)/(d/2)² (directed to the left)
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