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AP Physics 2
10.3 Electric Fields
10.1 Electric Charge and Electric Force
BeginnerMCQDrawing RepresentationsConceptual18.6k
A square outline positioned centrally. At the top-left corner, a filled circle is labeled -Q. At the top-right corner, a filled circle is labeled -Q. At the bottom-left corner, a filled circle is labeled -Q. The bottom-right corner has an open dashed circle showing an empty corner. At the exact center of the square, a small filled circle is labeled +q. No force vectors, lines, or other labels appear.
Three point charges at corners of a square with a test charge at the center.
Three identical point charges, each with charge \(-Q\), are held fixed at the top-left, top-right, and bottom-left corners of a square. A small test charge with charge \(+q\) is placed at the center of the square. Which of the following best describes the direction of the net electrostatic force exerted on the central test charge?

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