LEDs are used in _ watches.
Correct answer: B. Digital
- A. Hand
- B. Digital
- C. Simple
- D. None of these
Explanation
LEDs (Light-Emitting Diodes) are commonly used in digital watches. They provide the display illumination and are known for their low power consumption, durability, and ability to produce various colors, making them suitable for displaying the time and other information in digital watches.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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