Calculate the resistance of the filament of lamp rated at 240V 60W

Physics WAEC 1998

Calculate the resistance of the filament of lamp rated at 240V 60W

  • 240\(\Omega\)
  • 360\(\Omega\)
  • 960\(\Omega\) checkmark
  • 144\(\Omega\)
  • 2880\(\Omega\)

The correct answer is: C

Explanation

P = \(\frac{V^2}{R} = \frac{240^2}{60} = 960\)
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