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A uniform line charge that has a linear charge density λ = 4.4 nC/m is on the x axis between x = 0 to x = 5.0 m.

(a) What is its total charge?

(b) Find the electric field on the x axis at x = 6 m.

(c) Find the electric field on the x axis at x = 11.0 m.

(d) Find the electric field on the x axis at x = 240 m.

To solve for a, I used the equation Q=lambda*length. My answer is 22nC, which is correct.

To solve for the remaining portion of the question, I used E=kQ/[x^2], where I took x to be (L+a-x). L is defined as the length of the rod (5m), a is the difference between the given position and the rod (for b, 1m), and x is the distance from the origin to the midpoint of the rod (2.5m).

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# Homework Help: Beginning physics, please help in finding the electric field for a uniform line charg

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