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3 cards from this section. Quick, good the night before a test.
What is an LED?
Think about what happens when you connect it to a power source.
Name one material used in the construction of LEDs.
Consider the name of the compound mentioned.
What does LED stand for?
Consider what role illumination plays in the acronym.
LEDs can work in reverse bias.
Think about how other diodes behave under reverse bias.
Describe a scenario in which LEDs can replace traditional incandescent bulbs, specifying their advantages.
Consider factors like energy savings and replacement frequency.
If an LED emits red light, what can you infer about the energy band gap of the semiconductor used? Discuss its implications for the LED's application range.
Think about how band gap energy relates to the color of light produced.
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