The intensity of a lightbulb with a resistance of 120 is controlled by connecting it in
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The intensity of a lightbulb with a resistance of 120 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 110 V.
(a) What is the average power dissipated in the lightbulb when L = 0?
(b) 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?
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A light bulb R 120 is connected in series to a variable inducto...View the full answer
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