Which end of this component connects to the battery and which leg on the LED does the other end connect to?
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Longer leg is positive, resistor normally goes on that one.
Anode is the proper name for the long one, cathode is the shorter one.
The resistor doesn't care which way round it goes, or which side of the LED.
@moocher started
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Which end of this component connects to the battery and which leg on the LED does the other end connect to?
1 Attachment