Question #79555
The intensity of a lightbulb with a resistance of 110 ohms 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 frequency of 60hz. And an rms voltage of 120V. P=130 w The inductor is now adjusted to L=Lmax. The average power dissipated in the lightbulb is one-fourth of 130 W. What is the value of Lmax?
1
Expert's answer
2018-08-05T07:49:08-0400
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