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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 5
Q

Three 4545-Ω\Omega lightbulbs and three 6565-Ω\Omega lightbulbs are connected in series.

  1. What is the total resistance of the circuit?
  2. What is the total resistance if all six are wired in parallel?
A
  1. 330  Ω330 \; \Omega
  2. 8.9  Ω8.9 \; \Omega
Giancoli 7th Edition, Chapter 19, Problem 5 solution video poster
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