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trah22
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Homework Statement
a thin nonconducting rod is bent in a circular arc. Half is given a uniformly distributed postive charge and the other half uniformly negative. Draw the direction of the electric field at the center of the circle.
Homework Equations
E=Fe/qo, F=qE E=ke(q/r2)r
The Attempt at a Solution
Im not really sure what to apply here, a test particle is always postive, so if placed in the middle of the circle made by the bended rod it the electric field points to the negative side...