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Question
State the resistance of a 220 V – 100 W bulb.
WBBSE
Class X
Physical Science
Current Electricity
01 Mark
2025
Answer
Voltage (V) = 220 V
Power (P) = 100 W
R = \frac{220^2}{100}
R = \frac{48400}{100} = 484 Ω
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