**Unformatted text preview: **. sin λ sin but λ λ and λ 2 a dθ θ k θ dE dE a dθ k a dl k dE πa Q y = = = = = So, ∫ = = θ-= = 2 2 2 . downward , 2 λ 2 ] cos [ λ 2 sin λ 2 π π y πa kQ a k a k dθ θ a k E...

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- Electric charge, negative y-direction, right halves, y-component points