There are 3 positive charges and one negative charge (Q=2.0mC). They are fixed on corners of a square which has side length a=2.8 meters .what is the magnitude of the electric force  on a charged particle q=1μC that is at the center of the square? Units of the options below are N. a. 4.6.  B.2.3.   C.14.  D.

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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.