problem21_94

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