University Physics with Modern Physics with Mastering Physics (11th Edition)

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
21.94: The electric field in the x -direction cancels the left and right halves of the semicircle. The remaining y -component points in the negative y -direction. The charge per unit length of the semicircle is:
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

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...
View Full Document

This document was uploaded on 02/06/2008.

Ask a homework question - tutors are online