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A square is 1.0 m on a side. Point charges of +4.0 μC are placed in...

A square is 1.0 m on a side. Point charges of +4.0 μC are placed in two diagonally opposite corners. In the other two corners are placed charges of +3.0 μC and -3.0 μC. What is the potential (relative to infinity) at the midpoint of the square?

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Answer #1

As the Square is of Length 1m, the length of diagonal is sqrt(2) m

Length of Half the Diagonal is r= 1/ sqrt(2) m

Potential = k/r (q1+q2+Q3+Q4)

Potential = 9*10^9*sqrt(2) * (8)*10^-6

Potential at Mid Point is 101.82*10^3 v

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