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Fluorescent tamp Ballast An inductor is used to limit the currentthrough a fluorescent lamp that is operated with an rms voltage of120 $\mathrm{v}$ at $f=60 \mathrm{Hz}$ . If the maximum rms current should be 0.33 $\mathrm{A}$ , and assuming the lamp has zero resistance, what value of induc-tance $L$ should be used as the ballast?

$=0,96H$

Physics 102 Electricity and Magnetism

Chapter 24

Alternating-Current Circuits

Current, Resistance, and Electromotive Force

Direct-Current Circuits

Electromagnetic Induction

Alternating Current

Cornell University

University of Michigan - Ann Arbor

University of Washington

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in this case, the relation between the voltage on the current is the following v r a mass in the course to I. R m s times the impudence. But in the situation where we have only in in doctor with zero resistance, the impedance Zico's through the inductive reactor's off the doctor So v are a mess. Is it goes to why Ari Mass times the inductive reactors, which is? He goes to two pi times the frequency times the victims, then conductors is he goes to devote fish divided by the are a mess current times to pie times new frequency, then plugging the values given by the problem we get that the conduct in CE is he close to 120 divided by 0.33 times to pi times 60 and it is approximately zero point 96 four. We choose again, approximately 0.9 to 6. Henry's

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