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

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

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User Serge Weinstock
by
7.7k points

1 Answer

5 votes
1.P=UI
2.U=IR
so P=U^2/R
R=U^2/P=110*110/250=48.4ohm
answered
User Chithra
by
7.6k points
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