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
    7,392
    1,605
    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
    7,050
    657
    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

    Well-Known Member

    Dec 26, 2010
    2,147
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    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
    22,182
    1,728
    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
    141
    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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