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A light bulb is given with rating 100 watt,220 volt. How much it current draws from supply? Also find the resistance of filament of this bulb.

Posted by Aakriti Rustagi 5 years ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years ago

Bulb ratting is 100 W and 220 V bulb means when 220 V potential difference is applied between the two ends then power consumed is 100 W
Here V=220 Volt
p=100 W
V²/R=100

So R=484Ω

3Thank You

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