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When a direct voltage of 90V is applied to a coil, 15A direct current flows from the source. When 90V 50Hz alternating voltage is applied, 9A alternating current flows. What is the effective active power of this coil when 90V 50Hz alternating voltage is applied?

When a direct voltage of 90V is applied to a coil, 15A direct current flows from the source. When 90V 50Hz alternating voltage is applied, 9A alternating current flows. What is the effective active power of this coil when 90V 50Hz alternating voltage is applied?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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When a direct voltage of 90V is applied to a coil, 15A direct current flows from the source. When 90V 50Hz alternating voltage is applied, 9A alternating current flows. What is the effective active power of this coil when 90V 50Hz alternating voltage is applied?

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