Notices
Results 1 to 5 of 5

Thread: Current and Electromagnets

  1. #1 Current and Electromagnets 
    New Member
    Join Date
    Aug 2009
    Posts
    2
    Is there a way to reverse current in a dc circuit?

    I want to have two electromagnets connected to a power supply, and be able to switch the polarity by reversing the direction of the current. Is this possible, or is there an easier way to do it?


    Reply With Quote  
     

  2.  
     

  3. #2  
    Suspended
    Join Date
    Apr 2007
    Location
    Pennsylvania
    Posts
    8,795
    You can reverse the current by connecting the battery in the opposite polarity. This wikipedia article shows a double pole double throw switch wired for polarity reversal (4-way).

    http://en.wikipedia.org/wiki/Switch

    Is there an easier way to do what?


    Reply With Quote  
     

  4. #3  
    New Member
    Join Date
    Aug 2009
    Posts
    2
    Thanks.
    Sorry, I meant was there another way to switch the polarity of the magnet without reversing the current, sounds stupid now that i read it
    Reply With Quote  
     

  5. #4  
    Suspended
    Join Date
    Apr 2007
    Location
    Pennsylvania
    Posts
    8,795
    Other than physically rotating the magnet, or reversing the direction of the current, no I don't think so. Perhaps if you described what you are trying to do with your circuit, somebody could help you.
    Reply With Quote  
     

  6. #5  
    Forum Freshman jammer's Avatar
    Join Date
    Oct 2008
    Location
    Colorado
    Posts
    60
    Quote Originally Posted by Harold14370
    Other than physically rotating the magnet, or reversing the direction of the current, no I don't think so. Perhaps if you described what you are trying to do with your circuit, somebody could help you.
    Somebody has to say this every time the OP doesn't describe enough for us to help. You think that they would have learned by now. I guess I won't stop expecting it to happen.
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •