Northwestern Physics Demos                                 Go back to MAGNETISM 
DCS# 5H15.10NWU#  E 5bLocation:   8 E-1 
title: MAGNETIC FIELDS around currents
aka: iron filings around a wire

Various wire arrangements are placed on an overhead.  Iron filings are sprinkled around the wire, and current is passsed through the wire.  Gentle tapping on the frame will help align more of the filings.

    Do the filings indicate a direction of the magnetic field?
    How do the filings indicate the field intensity?
overall set uppix of set upsolinoid fieldtoroid field