Question
Download Solution PDFश्रेणी में जुड़े 4 एल.इ.डी. के एक स्टैक के लिए विद्युत धारा सीमक प्रतिरोधक का मान _________होगा, यदि एल.इ.डी. 3 V, 3 mA और 15 V डी.सी. स्रोत में जुड़े होते हैं?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Source voltage = 15 V
Voltage of LED = 3 V
Current of LED = 3 mA
Now,
दिए गए परिपथ को इस प्रकार बनाया जा सकता है:
एल.इ.डी. परिपथ के माध्यम से प्रवाहित होने वाली धारा 3 mA है और उनमें से प्रत्येक का वोल्टेज अवपात 3 V है।
Therefore, by applying KVL, we get,
15 – R (3 mA) - 3 - 3 - 3 - 3 = 0
\(R = \frac{{15 - 12}}{3}~k{\rm{\Omega }} = 1~k{\rm{\Omega }}\)
Last updated on May 28, 2025
-> ISRO Technician recruitment notification 2025 has been released.
-> Candidates can apply for the ISRO recruitment 2025 for Technicians from June 2.
-> A total of 64 vacancies are announced for the recruitment of Technician.
-> The selection of the candidates is based on their performance in the Written Exam and Skill Test.
-> Candidates who want a successful selection must refer to the ISRO Technician Previous Year Papers to increase their chances of selection for the Technician post.