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Author Topic: need some electrical help - Resistors!  (Read 1026 times)

Offline Khare

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need some electrical help - Resistors!
« on: 26 April 2010, 22:18 »
Right. wanting to change to blue the colour of my switches. I have at home 330ohms resistors, will they be enough to connect a 3mm 7000mcd LED to the car's 12v power supply?
Ta
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Offline Khare

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Re: need some electrical help - Resistors!
« Reply #1 on: 26 April 2010, 22:23 »
Think I found my answer.

R = (VS - VL) / I

(12v - 3.2) / 0.020 = 293.3, So a 330ohms resistor will be fine...Am I right?
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Offline boneybradley

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Re: need some electrical help - Resistors!
« Reply #2 on: 26 April 2010, 22:48 »
pm kells I'm sure he will know best
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Offline Khare

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Re: need some electrical help - Resistors!
« Reply #3 on: 26 April 2010, 22:49 »
Quote from: boneybradley on 26 April 2010, 22:48
pm kells I'm sure he will know best
Done! :afro:
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