Question
Download Solution PDFLED is a _______ junction diode that emits light when activated.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- एक प्रकाश-उत्सर्जक डायोड (LED) वह अर्धचालक प्रकाश स्रोत होता है जो इसके माध्यम से धारा के प्रवाहित होने पर प्रकाश उत्सर्जित करता है।
- एक LED का अग्रगामी वोल्टेज, VF , वह वोल्टेज है जिसे LED को चालू करने के लिए, एनोड से कैथोड तक, LED के लीड पर लागू किया जाना चाहिए।
- आमतौर पर, एक LED का अग्रगामी वोल्टेज 1.8 और 3.3 वोल्ट के बीच होता है।
- यह LED के रंग से भिन्न होता है।
- एक लाल LED का आमतौर पर लगभग 1.7 से 2.0 वोल्ट तक पतन होता है।
- चूंकि बैंड-अन्तराल के साथ वोल्टेज पात और लाइट आवृत्ति दोनों बढ़ती हैं।
- एक नीली LED का लगभग 3 से 3.3 वोल्ट तक पतन होता है।
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