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: Limiting Resistor

  1. May 14, 2008 #1
    What is the purpose of placing a limiting resistor infront of an LED?
  2. jcsd
  3. May 14, 2008 #2
    The resistor is used to limit the current flowing through the LED by increasing the total resistance.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook