Practice Light Emitting Diode (led) (9.4) - Electronic Devices

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8 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What state must an LED be in to emit light?
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Think about how diodes work when current flows.
Question 2.
Name one application of LEDs.
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Consider where you've seen colored lights.
3Question 3.
What bias does an LED require to function?
- Forward Bias
- Reverse Bias
- Both
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Think about current flow direction.
4Question 4.
True or False: LEDs can be used in traffic lights.
- True
- False
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Consider where you've seen bright lights.
Question 5.
Evaluate the benefits of implementing LEDs over traditional incandescent bulbs in a municipal lighting project.
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Consider initial costs vs. long-term savings.
Question 6.
Design a new product that integrates LEDs for energy savings and aesthetic appeal.
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Think about how technology can enhance a user's experience.

4 more questions in this section. Enroll free to practise them all.