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Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
19
DC Circuits
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19-1: Emf and Terminal Voltage
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19-2: Resistors in Series and Parallel
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19-3: Kirchhoff's Rules
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19-4: Emfs Combined, Battery Charging
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19-5: Capacitors in Series and Parallel
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19-6: RC Circuits
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19-8: Ammeters and Voltmeters
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 21
Q

Two resistors when connected in series to a 120-V line use one-fourth the power that is used when they are connected in parallel. If one resistor is 4.8 kΩ4.8 \textrm{ k}\Omega, what is the resistance of the other?

A
4.8 kΩ4.8 \textrm{ k}\Omega
Giancoli 7th Edition, Chapter 19, Problem 21 solution video poster
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