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Determine the resistance of a 250-w lightbulb connected to its proper source voltage of 110 v.
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Determine the resistance of a 250-w lightbulb connected to its proper source voltage of 110 v.

User Serge Weinstock
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1 Answer

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1.P=UI
2.U=IR
so P=U^2/R
R=U^2/P=110*110/250=48.4ohm
User Chithra
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