Quiz #8: Which LED leg is plus?
// WHAT YOU WILL LEARN
LED legs: which one is + ? (the longer leg, the anode)
// LESSON NOTES
QUICK QUIZ! Which LED leg is plus (+)? 💡🤔
A) the longer leg
B) the shorter leg
C) either one
D) the bent one
Comment your answer before you read on! 👇
✅ Answer: A — the LONGER leg is the anode (+). The shorter leg is the cathode (−).
💡 Legs already cut? Look at the rim of the LED: the FLAT edge marks the minus (−) side.
Put it in backwards and it simply stays dark — it's a diode, current only flows one way. And always add a resistor!
Read the voiceover (transcript)
- Which LED leg is plus?
- The longer leg, the shorter leg, either one, or the bent one? Comment your answer!
- It's A, the longer leg! That's the anode, plus. The short leg is minus.
- Legs cut short? Look for the flat edge on the rim. That side is minus!
- Long leg, plus!
- Next: four point seven k in ohms? Follow!
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