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Solved: Show that operating a 100-W lamp continuously for

Chapter 15, Problem 47TAS

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QUESTION:

Show that operating a 100-W lamp continuously for 1 week when the power utility rate is 15¢/kWh costs $2.52.

Questions & Answers

QUESTION:

Show that operating a 100-W lamp continuously for 1 week when the power utility rate is 15¢/kWh costs $2.52.

ANSWER:

Step 1 of 3

First let's convert the value of the lamp’s power from the watts to the kilowatts.

We know,

So,

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