A 72 Ohm Coil of Wire Is Connected in Series with An Adjustable Resistor (rheostat) Whose Resistance Can Be Varied from 0 to 88 Ohms. if The Line Potential of Wire Is 115 Volts, What Is the Rheostat Resistance when Power Taken by The Coil Is 90 Watts
A 72 Ohm Coil of Wire Is Connected in Series with An Adjustable Resistor (rheostat) Whose Resistance Can Be Varied from 0 to 88 Ohms. if The Line Potential of Wire Is 115 Volts, What Is the Rheostat Resistance when Power Taken by The Coil Is 90 Watts
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter29: Direct Current (dc) Circuits
Section: Chapter Questions
Problem 19PQ
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A 72 Ohm Coil of Wire Is Connected in Series with An Adjustable Resistor (rheostat) Whose Resistance Can Be Varied from 0 to 88 Ohms. if The Line Potential of Wire Is 115 Volts, What Is the Rheostat Resistance when Power Taken by The Coil Is 90 Watts?
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