QUICK simple resistor question

Discussion in 'The Projects Forum' started by alexx, Jun 2, 2011.

  1. alexx

    Thread Starter New Member

    May 29, 2011
    29
    0
    hi!

    does my 10 ohm resistor go after my 5 LED's in series or before my 5 LED's in series ?

    resistors are to decrease current and current travels from - to + so isnt it at the end of the series? but most places says the begining

    power source : 9 volt

    Thanks!
     
  2. rdl2004

    New Member

    Aug 19, 2007
    3
    1
    It doesn't matter.
     
    alexx likes this.
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,953
    1,826
    Try it between LEDs 2 and 3. Or 1 and 2 might work. Never between 3 and 4.

    5 is right out!

    :D
     
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  4. alexx

    Thread Starter New Member

    May 29, 2011
    29
    0
    I put it after the leds and it worked like a charm! thanks
     
  5. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,049
    674
    You can put it anywhere in the string: At either end, or between any two LEDs. In a series circuit, the current is the same in all components, so order doesn't matter.
     
  6. jerseyguy1996

    Active Member

    Feb 2, 2008
    206
    9
    Ha ha....a holy hand grenade reference.....awesome!
     
  7. Adjuster

    Late Member

    Dec 26, 2010
    2,147
    302
    For the benefit of the OP, it may be as well to make quite clear that this was not meant to be a serious description of LED circuit behaviour. The nature of the original enquiry suggests that this could cause confusion.

    For my benefit...could someone please explain what is meant by a holy hand grenade - is this a military in-joke?
     
  8. SgtWookie

    Expert

    Jul 17, 2007
    22,202
    1,793
    It's a reference to "Monty Python and the Holy Grail" and the Holy Hand Grenade of Antioch:
    http://en.wikipedia.org/wiki/Holy_Hand_Grenade_of_Antioch

    A quote from the text in the link:
    The relevant passage begins at 4:10 in this video:
    http://www.youtube.com/watch?v=99X8WDQWAKg
     
    Last edited: Jun 3, 2011
  9. someonesdad

    Senior Member

    Jul 7, 2009
    1,585
    142
    And it was used to kill that poor little cute white rabbit. <sniff> Of course, later in the script the rabbit said "Tis but a scratch", but time constraints made them take that out.
     
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