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L.E.D has one leg longer then the other one, the longer one is positive and the smaller one is negative. If you have a l.e.d which has same length of legs then look inside the l.e.d for two kind of triangle peices and one of them will be smaller which is positive and one which is bigger and is negative.

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16y ago

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Related Questions

Which leg does current emit from in a LED?

Current flows from the anode (positive terminal) to the cathode (negative terminal) in a LED. The longer leg of the LED indicates the positive anode side, while the shorter leg represents the negative cathode side.


Why are led legs different in size?

Current will only flow one way through an LED, so it has a positive leg and a negative leg. One of them is longer to signify which is which (longer is negative). The negative side also has a chamfered edge on the LED itself.


How do you tell the difference between positive and negative on a led?

The longer leg of an LED is typically the positive (+) terminal, while the shorter leg is the negative (-) terminal. Additionally, the positive leg usually has a flat edge or a notch near it as a visual indicator.


How can you identify a negative leg on a LED?

the negative leg is shorter than the positive leg.


How can you identify the different legs of a led?

The length of the legs. The positive leg is always longer than the negative one.


What is the longer leg called on a led light?

The longer leg on a LED light is called the anode. It is usually the positive terminal and is marked with a longer leg or a "+" symbol.


What are the 2 ways to find out which is the positive leg and which is negative - led?

On an LED, one leg will be shorter than the other. The shorter leg is the negative polarity.


What is the short and long legs of LED called?

Cathode (negative) is the shortest leg and there is a flat edge on the base of the LED, and it must be connected to the negative wire or "-" connection. Anode (positive) is the longest leg, and must be connected to the positive wire or "+" connection, as electricity will only pass through a LED from positive to negative.


0n an LED what are the names of the positive and the negative leg?

Anode and cathode. Anode = negative lead, cathode = positive lead.


What is the positive leg of an LED?

The longest leg is the positive leg of any LED.


In an LED how can you work out which leg is negative?

because the negative leg is shorter.


In what two ways can you tell the polarity of and LED light?

If you plug it it in, if it doesn't light it's the wrong way round. Although these other two are more 'conventional': -The negative wire is closest to a small flat 'spot' on the LED's base. -The longer leg is the positive wire