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प्रश्न
An electric bulb is rated as 100W – 250V. What information does it convey? Calculate the resistance of its filament while glowing.
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उत्तर
Given: P = 100 W, V = 250 volt
The resistance of filament, R = `"V"^2/"P" = (250)^2/100 = 625 Omega`
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