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A Light-Dimmer Circuit The intensity of a lightbulb with a resistance of 130 Ω is controlled...

A Light-Dimmer Circuit The intensity of a lightbulb with a resistance of 130 Ω is controlled by connecting it in series with an inductor whose inductance can be varied from L=0 to L=Lmax. This "light dimmer" circuit is connected to an ac generator with a frequency of 60.0 Hz and an rms voltage of 120 V .

1. What is the average power dissipated in the lightbulb when L=0?

2. The inductor is now adjusted so that L=Lmax. In this case, the average power dissipated in the lightbulb is one-fourth the value found in part A. What is the value of Lmax?

Express answers using 2 significant figures.

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Answer #1

Solo R=1301 L=0 to Lmar Given F-60Hz Data. Voums 120 V Pent on Average Power Dissipated when L=0 Pavg = Voins Paug = 110 watt

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