xxburnoutxx
xxburnoutxx xxburnoutxx
  • 03-03-2015
  • Physics
contestada

What is the current in a 75 W light bulb that
is plugged into 120 V household outlet?

Respuesta :

Alexandra12230
Alexandra12230 Alexandra12230
  • 03-03-2015
 P=VI
75=240*I
L=75 / 240
I rms =0.3125 A
Answer Link
AL2006
AL2006 AL2006
  • 03-03-2015

Power = (voltage) x (current)

Divide each side by (voltage):  

               Current = (power) / (voltage)

                         I  =     (75) / 120  =  0.625 Amperes = 625 mA  


Answer Link

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