exam 1 spring 2001

# exam 1 spring 2001 - The semicircle starts at = and ends at...

This preview shows pages 1–4. Sign up to view the full content.

Problem 1 (25 pts) A system of three charges is shown in the diagram below. Find the total force on the charge 3 q . 1 z x y 1 q (1,0,1) (0,1,0) (1,2,1) 2 q 3 q 1 2 3 1[ ] 2 [ ] 3[ ] q C q C q C = = - =

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Problem 2 (25 pts) Given the electric flux density 2 2 2 2 ˆ ˆ ˆ 5cos ( ) 17 9 cos ( ) [ / ] C m φ ρ = - + φ z find the net electric flux in the upward direction through the annulus shown in the figure ( a b ). 2 z x y b a
Problem 3 (25 pts) A thin line charge of density 0 sin( ) ρ φ = l is in the form of a semi-circle of radius a lying on the x-y plane with its center located at the origin.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The semicircle starts at = and ends at π = . Find the electric field vector E at a location z along the z-axis. 3 z x y a sin( ) = l Problem 4 (25 pts) Given the electric field ( 29 ( 29 ( 29 2 2 ˆ ˆ ˆ 3 4sin 2 1 [ / ] z V m φ φρ ρ = + + + + Eρ φ z find the result of the line integration B AB A V = ⋅ ∫ E d l by integrating along the path shown in the figure. 4 A 45 o 2 [m] 1 [m] B x y...
View Full Document

## This note was uploaded on 10/29/2009 for the course ECE 2317 taught by Professor Staff during the Spring '08 term at University of Houston.

### Page1 / 4

exam 1 spring 2001 - The semicircle starts at = and ends at...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online