leslie2772 leslie2772
  • 17-02-2018
  • Physics
contestada

Determine the resistance of a 75-w lightbulb connected to its proper source voltage of 110 v.

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bineleyas
bineleyas bineleyas
  • 17-02-2018
We Know that:
P=V²R 
Hence; 
We have V=110 v and P=75 w

R=V²/P ⇒ 110²/75 
R=  12100/75
R= 161.33 Ω
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