Quote:
Originally Posted by theiceman
the purpose of the resistor is to limit the current going through the led.. keeps circuit current low.. forward biased diodes have very little resistance and require very little current to light, without the resistor the higher current flow would burn it out .
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Yes - and depending on the wire gauge - without that resistor either the wiring or the LED is going to go open circuit. This is basically what a circuit breaker in your house does - limits current flowing through wiring.