# Jan-Apr 2011 Lecture Notes and Selected Problems and Solutions

Chapter 23 Lecture Notes and Problems, revised for 2011
Sunday, March 07, 2010
7:22 PM
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CP 24 The ammeter in the figure reads 3.0 A. Determine
I1, I2, and .
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CP 52 Two 75 W light bulbs are wired in series, then the
combination is connected to a 120 V power supply. How
much power is dissipated by each bulb? (Additional question:
Repeat if the two bulbs are connected in parallel.)
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CP 57 When two resistors are connected in parallel across a
battery of unknown voltage, one resistor carries a current of
3.2 A and the second carries a current of 1.8 A. How much
current will be supplied by the same battery if these two
resistors are connected to it in series?
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CP 58 The 10 Ω resistor in the figure dissipates 40 W
of power. How much power do the other two resistors
dissipate?
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