When a 19-Ω Resistor Is Connected Across a 5-V Battery,a

question 58

Multiple Choice

When a 19-Ω resistor is connected across a 5-V battery,a current of 489 mA flows.What is the power output delivered by the emf of the battery?

• A) 95 W
• B) 79.5 W
• C) 4.5 W
• D) 1.2 W
• E) ​46.5 W

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