Question: A charged wire creates an electric field at a point P located at a distance D from the wire (Figure 9). The component E
A charged wire creates an electric field at a point P located at a distance D from the wire (Figure 9). The component E⊥ of the field perpendicular to the wire (in newtons per coulomb) is
where λ is the charge density (coulombs per meter), k = 8.99 × 109 N · m2/C2 (Coulomb constant), and x1, x2 are as in the figure. Suppose that λ = 6 × 10−4 C/m, and D = 3 m. Find E⊥ if
(a) x1 = 0 and x2 = 30 m, and
(b) x1 = −15 m and x2 = 15 m.
x1 D TOP x2 -X
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