Question
Download Solution PDFRam bought a bulb rated as 50 W and 220 V. When it is connected to a 220 V supply, its resistance will be:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 2)968 Ω
Given:
\(P=50W,V=220V\)
Formula:
\(P={V^2\over R}\)
Calculations:
\(P={V^2\over R}\)
\(R={V^2\over P}\)
\(R={220^2\over 50}\)
\(R={48400\over 50}=968Ω\)
Thus, the resistance of the bulb is 968 Ω.
Last updated on Jul 17, 2025
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