This image shows four individual poles, also known as a quadrupole. The many poles produce a complicated magnetic.

This image shows four individual poles, also known as a quadrupole. The many poles produce a complicated magnetic.

This image shows four individual poles, also known as a quadrupole. The many poles produce a complicated magnetic.

The source of this material is Windows to the Universe, at http://www.windows.ucar.edu/ at the University Corporation for Atmospheric Research (UCAR). © The Regents of the University of Michigan. All Rights Reserved. Site policies and disclaimer