5th Edition

ISBN: 9780321976444

Author: James S. Walker

Publisher: PEARSON

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Chapter 24, Problem 88GP

A Light-Dimmer Circuit 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 = L_max. 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 = L_max. In this case, the average power dissipated in the lightbulb is one-fourth the value found in part (a). What is the value of L_max?

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Chapter 24, Problem 87GP

Chapter 24, Problem 89GP

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Chapter 24 Solutions

Physics (5th Edition)

Ch. 24.1 - A circuit has a sinusoidally varying current whose...Ch. 24.2 - Circuit 1 has a capacitor with a capacitance C and...Ch. 24.3 - The two circuits shown in Figure 24-14 have...Ch. 24.4 - A circuit consists of an ac generator and an...Ch. 24.5 - Prob. 5EYU Ch. 24.6 - An RLC circuit has a resonance frequency of 60 Hz....Ch. 24 - Why is the current in an ac circuit not always in...Ch. 24 - An LC circuit is driven at a frequency higher than...Ch. 24 - An LC circuit is driven at a frequency lower than...Ch. 24 - Prob. 4CQ

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