Limiting Resistor: Purpose of Placing in Front of LED

  • Thread starter Thread starter sanado
  • Start date Start date
  • Tags Tags
    Resistor
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
Sign up Log in
1 reply · 2K views
sanado
Messages
55
Reaction score
0
What is the purpose of placing a limiting resistor infront of an LED?
 
Physics news on Phys.org

Discussion

The resistor is used to limit the current flowing through the LED by increasing the total resistance.
 

Similar threads

Engineering Inductor current with zener diode and no current-limiting resistor
  • PhysicsTest
  • · Replies 1 ·
  • Engineering and Comp Sci Homework Help
Replies
1
Why is a current limiting resistor necessary in an LED circuit?
  • metiman
  • · Replies 10 ·
  • Electrical Engineering
Replies
10
Current limiting resistor for led on 7408 gate output
  • Ald
  • · Replies 9 ·
  • Electrical Engineering
Replies
9
High School Why placing a blue filter in front of a light source will give blue li
  • hangover
  • · Replies 1 ·
  • Optics
Replies
1