Question
Download Solution PDFরাম 50 W এবং 220 V হিসাবে রেট করা একটি বাল্ব কিনেছে। যখন এটি একটি 220 V সরবরাহের সাথে সংযুক্ত থাকে, তখন এর রোধ ক্ষমতা কত হবে?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFসঠিক উত্তর হল বিকল্প 2) 968 Ω
প্রদত্ত:
\(P=50W,V=220V\)
সূত্র:
\(P={V^2\over R}\)
গণনা:
\(P={V^2\over R}\)
\(R={V^2\over P}\)
\(R={220^2\over 50}\)
\(R={48400\over 50}=968Ω\)
সুতরাং, বাল্বের রোধ হল 968 Ω
Last updated on Jul 18, 2025
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