Anode and cathode. Anode = negative lead, cathode = positive lead.
LED's are DC voltage. Transformers are AC voltage. There is no positive or negative on AC voltage. You would need a diode to change the AC to DC, then there would be positive and negative voltages.
On an LED, one leg will be shorter than the other. The shorter leg is the negative polarity.
It looks like this question may be filed in the wrong spot. While it includes a "golden ratio," and therefore looks like a math question, it is really about relationships. John Gottman is a researcher and expert in relationships, particularly marriage. In studying couples, Gottman began to recognize and quantify symptoms that led to marital distress and eventual divorce. In that process, he also identified the opposite: how can marriages be improved and saved? And herein lies the "Golden Ratio." The ratio is of positive interactions to negative interactions. Or in mathematical formula (Positive interaction)/(Negative interaction). Dr. Gottman determined that for every negative interaction, there are five positive interactions in healthy couples (or couples that want to move toward health). The beauty of this ratio is that it demonstrates 1) that healthy couples are not without painful moments, and 2) you can do something to improve a distressed relationship, simply by focusing on more positive interactions. So the short answer is 5/1 positive to negative interactions. Lee H. Baucom, Ph.D. Creator, <a href="http://savethemarriage.com">Save The Marriage System</a>
The simplest answer is: E is energy, m is mass, and c is the speed of light in a vacuum. But what does this really mean? Well, to be correct, Einstein's full equation is: E^2 = (mc^2)^2 + (pc)^2, where p stands for momentum. This equation applies to much more than the colloquial E = mc^2. It applies to moving objects, explains why mass drops when two atoms join together, and many other relativistic observations. Also, a very important point is that, because both sides of the equation are squared, solving for E (energy) yields to answers, a positive one and a negative one. This realization is what led to the hypothesis and eventually the discovery of anti-matter, which posses negative energy and/or mass.
The length of the legs. The positive leg is always longer than the negative one.
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.
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.
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.
Anode and cathode. Anode = negative lead, cathode = positive lead.
the negative leg is shorter than the positive leg.
Look at the size of the 'flags' inside the LED lens itself. The bigger one is the positive one. Don't ask me about a bi/tri colour LED, maybe with a capacitor.
LED has two pins,one is anode(positive) and the other is cathode(negative).The smaller pin is cathode(negative) and the longer pin is anode(positive).
LED's are DC voltage. Transformers are AC voltage. There is no positive or negative on AC voltage. You would need a diode to change the AC to DC, then there would be positive and negative voltages.
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.
On an LED, one leg will be shorter than the other. The shorter leg is the negative polarity.
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.