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!

Homework Help: How to find value of inductance in LR series circuit?

  1. Mar 13, 2010 #1
    Hi. This is a question from my lab. I have a series of measurements of the voltage drop across a resistor for various frequencies with a constant voltage source in an LR series circuit. From these measurements I am supposed to calculate the value of the inductance "L". How can I do this?
  2. jcsd
  3. Mar 13, 2010 #2
    For homework help you have to show some work to get some help.

    What is the reactance, XL as a function of frequency?
  4. Mar 13, 2010 #3
    XL = [tex]2*pi*f*L[/tex]
  5. Mar 13, 2010 #4
    OK... are you going to solve for L using geometry or the equations for complex impedence?
  6. Mar 14, 2010 #5
    Geometry. Got it, thanks.
  7. Mar 15, 2010 #6
    Good deal.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook