Power: A light bulb is connected to a 110-V source. What is the resistance of this bulb if it is a 100-W bulb?

Name: Power: A light bulb is connected to a 110-V source. What is the resistance of this bulb if it is a 100-W bulb?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The power (P) is given by P = V^2 / R, where V is the voltage and R is the resistance. Rearranging gives R = V^2 / P. Substituting the given values, R = 110^2 / 100 = 121 Ω, which is closest to 120 Ω.

Power: a Light Bulb Is Connected to a 110-V Source