Choose the correct answer * Charges -Q and +Q are located on the x- and y-axis, respectively, each at a distance d from the origin O, as shown below. What is the magnitude of the electric field at the origin O? A. kQ / 2d^2 B. kQ / sqrt(2)d^2 C. kQ / d^2 D. sqrt(2)kQ / d^2 E. 2kQ / d^2 A B C D E
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The electric field at the origin due to the charge -Q on the X-axis is E1 = k(-Q)/d^2 = -kQ/d^2. The direction of this field is along the negative X-axis. The electric field at the origin due to the charge +Q on the Y-axis is E2 = kQ/d^2. The direction of this Show more…
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