Two 1.5-V batteries are inserted into a flashlight. The batteries are in series, with their positive terminals in the same direction. One battery has an internal resistance of 0.15 ?, and the other has an internal resistance of 0.20 ?. When the switch is closed, a current of 0.54 A passes through the flashlight bulb. What percent of the dissipated power is dissipated in the batteries?
a. 10.2%
b. 6.3%
c. 1.6%
d. 1.9%
b
Physics & Space Science
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