zpostcode
How Do Magnets Work?
May 14, 2026 12:12 PM

  

How Do Magnets Work?1

  Magnetic field Magnets work on the basis of magnetic fields. (more) How Do Magnets Work? Ask the Chatbot a Question More Actions Share Share Share to social media Facebook X URL https://www.britannica.com/science/How-Do-Magnets-Work Feedback Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login). Feedback Type Select a type (Required) Factual Correction Spelling/Grammar Correction Link Correction Additional Information Other Your Feedback Submit Feedback Thank you for your feedback Our editors will review what you’ve submitted and determine whether to revise the article.

  External Websites Ask the Chatbot a Question Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors. The Editors of Encyclopaedia Britannica Last Updated: Apr 8, 2025 • Article History Table of Contents Table of Contents Ask the Chatbot The fundamental principle behind magnetism is the magnetic field, which arises from the motion of electric charges. This field exerts forces on other magnetic objects and moving charges, causing attraction or repulsion. For instance, Earth’s magnetic field causes compass needles to line up in direction of the field. Magnetic fields may be represented by continuous lines of force or magnetic flux that emerge from north-seeking magnetic poles and enter south-seeking magnetic poles. A magnet is any material that can produce a magnetic field outside of itself. Different materials exhibit varying degrees of magnetism. Most materials are diamagnetic, which means they ...(100 of 224 words)

  Access the full article Help support true facts by becoming a member. Subscribe today!

Comments
Welcome to zpostcode comments! Please keep conversations courteous and on-topic. To fosterproductive and respectful conversations, you may see comments from our Community Managers.
Sign up to post
Sort by
Show More Comments
Recommend >
Want to be a pairs trader? How to assess, enter, and exit a pairs trade
     So you’ve done some research on the basic principles of pairs trading—the art and science of identifying similar (and correlated) stocks and placing offsetting long and short positions according to your strategy—and you’d like to give it a try.     First, do you have a margin account? Pairs trading requires taking a short leg on one of the stocks...
Let your cash DRIP into more shares: A guide to dividend reinvestment
     When selecting stocks for your portfolio, do you concentrate on high-potential companies that seek high growth and plow every penny of profit into research and development, technology, and marketing? Or do you look for steady-as-she-goes cash cows that tend to deliver solid earnings each quarter—and pay a portion of it out to shareholders in the form of a dividend?...
The Princess Bride
  The Princess Bride film by Reiner [1987] Actions Share Share Share to social media Facebook X URL https://www.britannica.com/topic/The-Princess-Bride-film-by-Reiner Share Share Share to social media Facebook X URL https://www.britannica.com/topic/The-Princess-Bride-film-by-Reiner Written by Kelly Gisonna Kelly Gisonna Fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by...
EBIT or EBITDA: Different ways of looking at net income
     When it comes to a company’s financial statements, net income, earnings per share (EPS), and revenue are the numbers that grab the headlines. But when analysts are doing a deeper dive to examine a company’s profitability and potential for future growth, they calculate other values from the income statement, such as earnings before interest and taxes (EBIT) and earnings...
Information Recommendation
Constitutional Carry of Guns
  Constitutional Carry of Guns Should Permitless, “Constitutional Carry” of Guns Be Legal? Actions Share Share Share to social media Facebook X URL https://www.britannica.com/topic/Constitutional-Carry-of-Guns Share Share Share to social media Facebook X URL https://www.britannica.com/topic/Constitutional-Carry-of-Guns Written by The Editors of ProCon ProCon's editors write and verify new content and update existing content. ProCon presents the pro and con arguments to debatable issues...
Saturday Night Fever
  Saturday Night Fever film by Badham [1977] Actions Cite verifiedCite While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions. Select Citation Style MLA APA Chicago Manual of Style Copy Citation Share Share Share to social media Facebook X...
position (trading)
  In financial markets, whenever you initiate a transaction that places a security (e.g., a stock, bond, exchange-traded fund (ETF), or derivatives contract) into your account, the exposure you have to price fluctuation in that security is called a position, or trading position. A position is either “long” or “short.”    If you buy 100 shares of a stock or ETF, you have a long...
...
one-state solution
  one-state solution Israeli-Palestinian history Actions Cite verifiedCite While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions. Select Citation Style MLA APA Chicago Manual of Style Copy Citation Share Share Share to social media Facebook X URL https://www.britannica.com/topic/one-state-solution Give...
Ptolemaic dynasty
  Ptolemaic dynasty ancient Egypt Actions Share Share Share to social media Facebook X URL https://www.britannica.com/topic/Ptolemaic-dynasty Share Share Share to social media Facebook X URL https://www.britannica.com/topic/Ptolemaic-dynasty Written by Alan K. Bowman Lecturer in Ancient History, University of Oxford; Student and Tutor, Christ Church, Oxford. Author of Egypt After the Pharaohs. Alan K. Bowman, Joyce Tyldesley Senior Lecturer, Faculty of Life Sciences,...
What is the Federal Housing Finance Agency (FHFA)?
     The Federal Housing Finance Agency (FHFA) is a U.S. government agency created by the Housing and Economic Recovery Act of 2008 (HERA). Its main role is to provide oversight of mortgage and housing credit government-sponsored enterprises (GSEs), specifically the Federal National Mortgage Association (Fannie Mae), Federal Home Loan Mortgage Corporation (Freddie Mac), and the Federal Home Loan Bank System....
Branden Jacobs-Jenkins
  Branden Jacobs-Jenkins American playwright Actions Share Share Share to social media Facebook X URL https://www.britannica.com/biography/Branden-Jacobs-Jenkins Share Share Share to social media Facebook X URL https://www.britannica.com/biography/Branden-Jacobs-Jenkins Written by Nick Tabor Nick Tabor is a freelance journalist and the author of Africatown: America's Last Slave Ship and the Community It Created. Nick Tabor Fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's...