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05-02-2018
Physics

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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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qq2480816826 qq2480816826

05-02-2018

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

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