PROBLEM Charge q = 7.00 µC is at the origin, and charge q2 = -5.00 µC is on the x-axis, 0.300 m from the origin (Fig. 15.12). (a) Find the magnitude and direction of the electric field at point P, which has coordinates (0, 0.400) m. (b) Find the force on a charge of 2.00 × 10-8 C placed at P.

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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.