This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Current within ring: dI = dQ T = (2 rdr ) 2 = rdr. Magnetic moment of ring: d = dI ( r 2 ) = r 3 dr . Magnetic moment of disk: = Z R r 3 dr = 4 R 4 . Vector relation: ~ = 4 R 4 ~ = 1 4 QR 2 ~. tsl199 p.1/1...
View Full Document
This note was uploaded on 04/30/2008 for the course PHYS 204 taught by Professor Andrevantonder during the Spring '07 term at Rhode Island.
- Spring '07