Find the average power dissipated in the lightbulb

Reference no: EM13511385

A Light-Dimmer Circuit The intensity of a lightbulb with a resistance of 140 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 a frequency of 60.0 Hz and an rms voltage of 120 V.

A. What is the average power dissipated in the lightbulb when L=0? answer in units of W.

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? answer in units H.

Reference no: EM13511385

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