Consider a square which is 1.0 m on a side. Charges are placed at the corners of the square as follows: +4.0 µC at (0, 0); +4.0 µC at (1, 1); +3.0 µC at (1, 0); -3.0 µC at (0, 1). What is the magnitude of the electric field at the square's center?"     1.1x105 N/C     1.3x105 N/C     1.5x105 N/C     1.7x105 N/C

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.