An Incandescent Lightbulb Is Rated at 100 Watts When Plugged

question 37

Multiple Choice

An incandescent lightbulb is rated at 100 watts when plugged into a 110 V rms household outlet. Calculate the resistance of the filament and the rms current.

• A)12.2 Ω, 0.91 A (rms)
• B)10 Ω, 1.0 A (rms)
• C)110 Ω, 1.0 A (rms)
• D)121 Ω, 0.91 A (rms)
• E)11 Ω, 1.1 A (rms)

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