Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum Passing current through a magnet

 Physics Forum Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.

Passing current through a magnet

Passing current through a magnet - Physics Forum

Passing current through a magnet - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.

#1
05-23-2011, 10:02 AM
Pipette Filler

Join Date: May 2011
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Passing current through a magnet

I think magnet has to be a conductor of electricity if is made of iron or steel. So, What happens when we pass a direct current through a magnet? What if we pass through AC? Does the passage of current effect the strength of the magnet?
#2
07-03-2011, 08:17 PM
Pipette Filler

Join Date: Jul 2011
Location: Moscow
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Passing current through a magnet

For a magnetic field induced by current to be the same value as own field of magnet the current should be about 10^4 A, so for an ordinary wire it will result in temperature increasing and at first achieving the Curie point(loss of own magnetism) and then - melting.
so if you use not high values of current, then one may ignore the field induced by it, and strength will not change.
but with special geometry of a conductor and great heat removal nothing is impossible)
#3
12-08-2011, 09:20 AM
Pipette Filler

Join Date: Dec 2011
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Passing current through a magnet

You know there will be two effects, one is a possible change in the permanent magnetic flux intensity of the magnet and another one is that generation of a secondary magnetic flux intensity which will be detectable as a spiral field around the metal object.

(i.e.,) If we pass a current through a magnet, it may play with the exchange interaction, disaligning the individual domains, reducing the overall magnetic flux intensity of the magnet. The current will develop an additional magnetic field which will spiral around the (assumed) length wise orientation of the bar magnet. This will create a superposition of the magnetic flux intensities, and likely work to disrupt the orientations of the magnetic domains within the magnet.
#4
01-03-2012, 10:26 AM
Pipette Filler

Join Date: Jan 2012
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Passing current through a magnet

など明るい色のコントラス
#5
03-24-2012, 07:25 AM
Pipette Filler

Join Date: Mar 2012
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Passing current through a magnet

Many permanent magnets are based on iron compounds, so are conductive.Magnet is a good conductor of electricity so current easily pass through this from one point to another.
#6
03-28-2012, 05:30 AM
Pipette Filler

Join Date: Mar 2012
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Passing current through a magnet

how magnet can be conductor i mean they are made up of conductors itself from iron and steel.in magnet dipoles are arranged linearly and to break that dipole lot of energy is required after that there is chance of magnet to be conductor .
#7
03-28-2012, 05:31 AM
Pipette Filler

Join Date: Mar 2012
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Passing current through a magnet

how magnet can be conductor i mean they are made up of conductors itself from iron and steel.in magnet dipoles are arranged linearly and to break that dipole lot of energy is required after that there is chance of magnet to be conductor .

 Tags current , magnet , passing

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home General Science Forums     Biology Forum     New Member Introductions Forum     Chemistry Forum         Organic Chemistry Forum     Physics Forum     General Science Questions and Layperson Board         Science and Religion Forum         Zoology Forum     Environmental Sciences and Issues General Forum     Chit Chat         Science and Lab Jokes     Article Discussion     Molecular Biology News and Announcements         Conferences , Symposiums and Meetings         Molecular Station Suggestion Forum         Instructions for Posting, Help, and Frequently Asked Questions     Science News and Views         Molecular Biology Lectures and Videos     Science Careers         Post-doctoral         Medical School         Ph.D Doctor of Philosophy         Science Jobs Forum Molecular Research Topics Forum     PCR - Polymerase Chain Reaction Forum         Real-Time PCR and Quantitative PCR Forum     Bioinformatics         BioStatistics Forum     Molecular Biology Techniques         Molecular Cloning Forum         Electrophoretic Mobility Shift Assay Forum         Agarose Gel Electrophoresis Forum         BioPhysics Forum         Gene Therapy     Cell Biology and Cell Culture         Apoptosis, Autophagy, and Necrosis Forum         Flow Cytometry Forum         Transfection Forum         Confocal - Microscopy Imaging Techniques         Immunology and Host-Pathogen Interactions         Signalling Biology         Stem Cell Forum     Basic Lab Protocols and Techniques         SDS-PAGE Gel Electrophoresis Forum     DNA Techniques         DNA Extraction Forum         cDNA Forum     Epigenetics Forum: DNA Methylation, Histone and Chromatin Study         ChIP Chromatin Immunoprecipitation Forum     Protein Science         Antibody Forum             Immunoprecipitation Forum         Western Blot Forum         Protein Crystallography Forum         Recombinant Protein Forum         ELISA Assay Forum         Protein Forum     Proteomics Forum         Peptide Forum         Mass Spectrometry Forum         2-D Gel Electrophoresis Forum     Omics and Genomics Forum         Microarrays Forum         Genomics Forum     RNA Techniques Forum         RNAi and SiRNA Forum     Histology Forum         Immunohistochemistry Forum         Immunocytochemistry Forum         Electron Microscopy Forum         Immunofluorescence Forum     Protocols and Methods Forum     Molecular Biology Articles and Protocols     Animal and Molecular Model Systems         Drosophila Forum         Yeast Forum         Zebrafish Forum         Botany Forum         C Elegans Forum         Arabidopsis and Plant Biology         Microbiology Forum         Knockout Mouse Forum     Chromatography Forum Products and Vendor Discussion     Molecular Biology Products and Vendors         Bad Product/Service? Post Here         Lab Equipment Discussion and Reviews Regional Molecular Biology Discussion     Forum Chemie     Forum Biologie     Forum Biologia     Forum Chimica     Forum Physik     Forum De Chimie     Forum De Physique     Forum Chemia     中国人分子的生物学论坛 Chinese     Greek Molecular Biology Forums     分子生物学のフォーラム Japanese     ميدان فارسى. Persian Molecular Biology     [أربيك] علم ساحة- Arabic     Forum de Biologie Moleculaire     Forum Biologia Molecolare     Forum die Molekularbiologie     Foro Biologia Molecular

 Similar Threads Thread Thread Starter Forum Replies Last Post Hamid.V.Ansari@gmail.com Physics Forum 22 09-16-2007 02:52 AM Hamid.V.Ansari@gmail.com Physics Forum 0 09-05-2007 05:41 AM laura Physics Forum 0 04-10-2007 07:13 PM h_v_ansari@yahoo.com Physics Forum 1 10-19-2006 07:23 PM stone Physics Forum 13 02-19-2006 05:40 AM

All times are GMT. The time now is 01:44 PM.

 Contact Us - Molecular Biology - Archive - Privacy Statement - Top