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: Inductance Question

  1. Mar 23, 2005 #1
    Hi all, I've managed to solve the following question but the answer I'm getting doesn't seem right...

    What inductance must be connected to a 17 pF capacitor in an oscillator capable of generating 550 nm (i.e. visible) electromagnetic waves? Comment on your answer.

    To solve it I just rearranged the following equation and isolated L


    I'm also not sure what the prefix 'p' in the 17pF stands for...

    Last edited: Mar 23, 2005
  2. jcsd
  3. Mar 23, 2005 #2
    p stands for pico, which is equivalent to 10^(-12).
  4. Mar 23, 2005 #3
    So this is what I have now, the answer I'm getting is extremly small, could someone please just check over my work to see if I have made any errors... Thanks


  5. Mar 23, 2005 #4
    Your algebra looks right to me. I don't remember much about inductance to comment on the physics of it.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook