Another dumb question!! inductors

Discussion in 'General Electronics Chat' started by electronewb, Apr 30, 2012.

  1. electronewb

    Thread Starter Member

    Apr 24, 2012
    Can an inductor work with DC? in my experience I have to connect the an inductor to an AC source than taking another inductor hooked up to my scope and I am supposed to see a wave from the "second coil" I have a 120VAC to 7VAC for my experiment so far I am not getting much reading on the scope triangle waves that are really dirty!!
  2. wmodavis

    Distinguished Member

    Oct 23, 2010
    Of course they can, have seen them many times in DC lines as line filters. DC circuits can have current changes and the properties of an inductor allow it to conduct DC and oppose changes in current. Remember V=L di/dt?
  3. crutschow


    Mar 14, 2008
    You ask about using an inductor with DC and then describe an experiment with inductors using AC. So I'm confused about what you are asking. :confused:
  4. electronewb

    Thread Starter Member

    Apr 24, 2012
    Here's what I'm trying to reproduce but doesn't seem to work!!! I used my signal generator and 7VAC but all I get is noise I want to see the magnetic field on the second coil You can see it at the end of this video (2:45)