Author Topic: Resistor help  (Read 1410 times)

Offline buickgnx

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Resistor help
« on: December 01, 2008, 02:17:35 PM »
can i use a 100 ohm instead of 82 ohm ?
« Last Edit: December 01, 2008, 03:01:17 PM by noah03ark »


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Offline Jumbo

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Re: Resistor hekp
« Reply #1 on: December 01, 2008, 02:27:16 PM »
Would help if you told us what you where doing with it...

Offline buickgnx

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Re: Resistor hekp
« Reply #2 on: December 01, 2008, 02:36:44 PM »
.im going to use 8 blue smd's on a gameboy color.


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Offline DarkShot

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Re: Resistor hekp
« Reply #3 on: December 01, 2008, 02:58:19 PM »
Its ok, but the leds will be a little dimmer.

Offline buickgnx

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Re: Resistor hekp
« Reply #4 on: December 01, 2008, 03:00:59 PM »
thank you


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Offline 802Chives

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Re: Resistor help
« Reply #5 on: December 01, 2008, 09:03:08 PM »
actually it will be a little brighter, the lower the resistance the brighter the led.  OHMs law: Voltage = Current(I) x Resistance..... V = I * R  If voltage remains constant(and it does..pretty much) when (R) is decreased (I) must increases and vise versa  :winker:


Offline Reaper

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Re: Resistor help
« Reply #6 on: December 01, 2008, 10:35:58 PM »
actually it will be a little brighter, the lower the resistance the brighter the led.  OHMs law: Voltage = Current(I) x Resistance..... V = I * R  If voltage remains constant(and it does..pretty much) when (R) is decreased (I) must increases and vise versa  :winker:

and he's going to increase the resistance...  100Ω vs 82Ω

Offline 802Chives

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Re: Resistor help
« Reply #7 on: December 08, 2008, 01:09:53 PM »
haha, I is good at reading! I tend to mix things up in my head a lot.  Darkshot was right it will make the led dimmer, however my explaination is still correct


 

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