A point charge Q₁ = 18 nC is placed at a distance of 9.0 m from the origin along the positive x-axis. A point charge Q₂ = 7.0 nC is placed at a distance of 3.0 m from the origin along the negative x-axis. (a) Find the net electric field at the origin. (b) Find the electric force on a point charge q = 2.0 nC placed at the origin.

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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.