- #1
Gijs
Homework Statement
A semi-circular wire containing a total charge Q which is uniformly distribute over the wire in the x-y plane. the semi-circle has a radius a and the origin is the center of the circle.
Now I want to calculate the electric field at a point located on at distance h on the z-axis. What is the magnitude of this electric field, and is this field only in the z direction?
Homework Equations
Coulomb's Law
The Attempt at a Solution
dE=dQ/(4πε√h^2+a^2)
dEz=dE cosθ = dQ/(4πε√(h^2+a^2))(h/(√(h^2+a^2))
E=Qh/(4πε(h^2+a^2)^(3/2))
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