In the figure, the point charges are located at the corners of an equilateral triangle 28 cm on a side. Part (a)  Find the magnitude of the electric field, in newtons per coulomb, at the center of the triangular configuration of charges, given that qa = 2.8 nC , qb = -9.8 nC , and qc = 1.8 nC.  Part (b)  Find the direction of the electric field in degrees below the right-pointing horizontal (the positive x-axis).

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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.