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Homework Statement
Find the xcomponent of the electric field
at the origin due to the full arc length
for a charge of 3.8 μC and a radius of
1.9 m. The value of the Coulomb constant
is 8.98755 × 109 N · m2/C2.
Homework Equations
E = kq/r^2
dq = q dθ
λ = Q/ (R θ)
The Attempt at a Solution
I said E = kq/r^2
And so Ex = kq/r^{2} * sinθ
and dEx = k*dq/r^{2} * sinθ
and dq = λ ds
ds = R dθ
λ = q/s
so dq = Q/θ dθ
I get kq/r^{2} ∫sinθ/ θ dθ
But when I input the answer from this integral (from the calculator) the answer is wrong.
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