An Incandescent Lightbulb Is Rated at 100 Watts When Plugged

question 11

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

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