1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Capacitor and magnetic field

  1. Mar 3, 2014 #1
    A coil in a magnetic field produces a sinusoidal emf output, so why can't you just attach a capacitor to it to charge it? Is it simply because capacitors store energy in electric fields, so you would need an inductor?
     
  2. jcsd
  3. Mar 3, 2014 #2

    berkeman

    User Avatar

    Staff: Mentor

    A parallel LC circuit immersed in a changing B-field will indeed develop an AC voltage across the capacitor. Why would you think it would not?
     
  4. Mar 3, 2014 #3
    Hmm that would work and got me thinking, so besides an LC circuit could one also implement a rectifier diode for unidirectional current instead of the sinusoidal wave?
     
  5. Mar 3, 2014 #4

    berkeman

    User Avatar

    Staff: Mentor

    Of course. What is the application?
     
  6. Mar 4, 2014 #5
    It was just a discussion question for a lab, thanks!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Capacitor and magnetic field
Loading...