0 1 2 3 1 2 4 2 5 4 2 12

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

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

Unformatted text preview: . . 0 ./ 1 2 3 ./ 1 2 ./ 4 2 5 ./ 4 2 . . . . $ $ ( ( $ 12 42 42 12 " " dr " " 14 - ' ' U = - WE : 5 ' ' ' U+ + FE FH E 3 ./ 1 2 & 0 3 : U ' ' ' dr . 42 ' ; 16 9 Move charge q2 from r1 r2. Find the change in potential energy. Fel r 12 q2 Fel ^ dr q1 q2 ^ r12 4 0 q1 r2 Fel q2 ^ dr q1 U U r2 U r1 r1 Fel d r ^ q1 q2 r12 dr 2 4 0 r1 r12 r2 From the diagram, r2 ^ r12 d r dr so, U q1 q2 d r 4 0 r1 r 2 q1 q2 4 0 1 r r2 r1 q1 q2 1 4 0 r2 1 r1 k q1 q2 1 r2 1 r1 $ ' ' d q1 q2 + d U q1q2 k 2 dr r12 $= kq1q2 1 d 1 q1q2 k d 1 q1q2 4 0 d ' + > ?@ A + $ 8 " $ U d 19 U d U...
View Full Document

This document was uploaded on 03/08/2012.

Ask a homework question - tutors are online