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On a unit circle with a diameter of 2 m (r=1 m) there are 2 positive charges of 1 C each, one at the center of both sides of the circle. there is a -1 C charge at the top of the unit circle. How much work is needed to move the -1 C charge to the middle of the circle? What is the net force at the top point of the unit circle? What is the net Electric field at the top point of the unit circle?

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