15_1_20 - ^ 20. F = r r - ^ . The field lines satisfy dr/r...

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

View Full Document Right Arrow Icon
20. F = r ˆ r - ˆ . The field lines satisfy dr / r = - r d θ , or - dr / r 2 = d θ , so they are the spirals
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/08/2012 for the course MATH 120 taught by Professor Onurfen during the Spring '12 term at Middle East Technical University.

Ask a homework question - tutors are online