Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Time Constant: Why?

  1. Oct 2, 2007 #1
    I was doing a lab about filters and the professor asked us, as an extra for the lab report, to explain why [tex]\tau = RC[/tex] and why [tex]\tau = 63 \% [/tex] of the total rise or decay.

    To be completely honest, I really don't know the answers for either question. I know it makes sense for [tex]\tau = RC[/tex] if you just plug it into the formula.

    Anyone have any ideas on how to explain this?
    Last edited: Oct 2, 2007
  2. jcsd
  3. Oct 2, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

  4. Oct 2, 2007 #3
    Thank you! that was exactly what I needed!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook