College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 66

A certain lightbulb is rated at 60.0 W when operating at an rms voltage of 120 V. (a) What is the peak voltage applied across the bulb (b) What is the resistance of the bulb (c) Does a 100-W bulb have greater or less resistance than a 60.0-W bulb Explain.