Ray is correct, and to add on to this M is used for the magnetization of th= e material (or density of magnetic dipole moments). Chris Jakubiec Infineon Technologies -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On= Behalf Of Ray Anderson Sent: Thursday, July 17, 2008 1:16 PM To: Ken Cantrell; Jack Olson; SI-LIST Cc: Ray Anderson Subject: [SI-LIST] Re: trivial newbie question I thought H was the magnetic field strength and B was the magnetic flux density where B =3D3D um*H (um =3D3D magnetic permeability) -Ray Anderson Xilinx Inc. > -----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] > On Behalf Of Ken Cantrell > Sent: Thursday, July 17, 2008 9:43 AM > To: Jack Olson; SI-LIST > Subject: [SI-LIST] Re: trivial newbie question =3D > Well, H is really B, but I guess all the M's were taken. > =3D > -----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx > [mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Jack Olson > Sent: Thursday, July 17, 2008 10:07 AM > To: SI-LIST > Subject: [SI-LIST] trivial newbie question =3D > =3D > *If electric is "E" field,* > *Why is magnetic called "H" field * > *(instead of "M") ???* > =3D This email and any attachments are intended for the sole use of the named r= =3D ecipient(s) and contain(s) confidential information that may be proprietary= =3D , privileged or copyrighted under applicable law. If you are not the in= tend=3D ed recipient, do not read, copy, or forward this email message or a= ny attac=3D hments. Delete this email message and any attachments immediate= ly. ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu