kenzie524 kenzie524
  • 25-08-2015
  • 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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AL2006
AL2006 AL2006
  • 25-08-2015

Resistance = potential difference (voltage) / current

Resistance = (120 V) / (0.5 A) = 240 ohms

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