Three equal charges $+ Q$ are at three of the corners of a square of side $d$. A fourth charge $+ Q$ of equal magnitude is at the center of the square as shown in the figure Which one of the arrows shown represents the net force acting on the charge at the center of the square?

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The Answer of Three equal charges $+ Q$ are at three of the corners of a square of side $d$. A fourth charge $+ Q$ of equal magnitude is at the center of the square as shown in the figure Which one of the arrows shown represents the net force acting on the charge at the center of the square?

Three Equal Charges +Q+ Q+Q Are at Three of the Corners of a Square of Corners

Three Equal Charges $+ Q$ Are at Three of the Corners of a Square of Corners