- #1
Broem
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Homework Statement
A charged rod of length L = 1.00 m lies centered on the x-axis as shown. The rod has a linear charge density which varies according to λ = ax where a = −90.0 μC/m.
What is the x component of the electric field at a point on the x-axis a distance of D = 2.00 m from the end of the rod?
Homework Equations
E=kQ/r^2
charge density = Q/A
The Attempt at a Solution
I really do not understand...Where do I get the r from? Since its not uniformly distributed how can there be any field outside?
Would my r = (D-(half of L))?
I'm assuming lambda is just regular charge density at a location of x?