1. Limited time only! Sign up for a free 30min personal 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!

Inductor Maximum Energy

  1. Feb 13, 2014 #1
    1. The problem statement, all variables and given/known data

    Assuming steady-state sinusoidal ac.A voltage of 240V at 50Hz applied to an inductor yields a current of 4A.Assume negligible resistance.Find inductance, max stored energy.

    2. Relevant equations



    3. The attempt at a solution

    V/I=X Which I found to be 60



    However the answer given is 3.06J , which has left me confused.

  2. jcsd
  3. Feb 13, 2014 #2


    User Avatar

    Staff: Mentor

    The given voltage and current values are no doubt RMS values...
  4. Feb 13, 2014 #3


    User Avatar
    Gold Member

    Maximum energy is stored when maximum current flows through it.
  5. Feb 13, 2014 #4
    Of course, I need to use I pk,

    so E=0.5*0.191*(4*2^1/2)^2=3.06J

    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: Inductor Maximum Energy
  1. Inductors in series (Replies: 12)

  2. Inductor size (Replies: 6)