VernellNesmith VernellNesmith
  • 09-10-2014
  • Physics
contestada

An incandescent lamp is operated at 120 V, and the current is 0.5 A. So, the resistance of the lamp is:

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luana
luana luana
  • 14-10-2014
[tex]*\\From\ Ohm's\ Law:\\\\ Current=\frac{Voltage}{Resitance}\\\\ Current*Resistance=Voltage\\\\ Resistance=\frac{Voltage}{Current}\\\\ Resistance=\frac{120V}{0,5A}\\\\ Resistance=240\ Ohms[/tex]
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