Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Two lamps need 50V and 2.0 A each in order to operate at a desired brilliancy. They are to be connected in series across a 120V line. What is the resistance of the rheostat which must be placed in series with lamps?

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