Consider an infinite line of charge, with linear charge density +3.5 x 10-12 C/m.  This line of charge is parallel to the z-axis and intersects the x-y plane on the x axis at        x = -6.7 m. Now consider a second infinite line of charge, with linear charge density +2 x 10-12 C/m.  This line of charge is also parallel to the z-axis and intersects the x-y plane on the x axis at x = +14.3 m. Calculate the magnitude of electric field, in N/C, at the origin.   Use ε 0 = 8.9 x 10-12 F/m.

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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.