(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A uniform line charge of linear charge density 5 nC/m extends from x = 0 m to x = 4 m. Find the electric field at x = 7 m. Answer in units of N/C.

2. Relevant equations

8.85 × 10^−12 C2/(N · m^2) is the permittivity constant

8.98755 ×10^9 (N · m^2)/C^2 is Coulomb's constant

Gauss's Law surface integral of E da = Q/(permittivity constant)

3. The attempt at a solution

I know the field of of a point on the SIDE of the same line segment is

kQ

(r square root of (r^2 +(L/2)^2))

Where r is the distance from the rod, and L the length of the rod, but my attempts are wrong.

I do not know how to find the field of a rod on the same axis.

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# Homework Help: Electric field of a linear charge on the axis of the line segment

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