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Byju's Answer
Standard X
Physics
Resistance
calculate the...
Question
calculate the resistance of a bulb rated 100w-220w what is the current flowing in the bulb when connected across a potential difference of 220v
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Solution
R=V^2/P
=220^2/100
=484ohms
Now
P=VI
I=P/V
=220/100
=2.2A
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