1. What is the cost to operate the lamp in Problem for 135 h if the cost...

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1. What is the cost to operate the lamp in Problem for 135 h if the cost of energy is $0.05/kWh?
2. If the cost of energy is $0.043/kWh, how long could you operate a motor that draws 0.40 A on a 110-V line for $0.45?
3. How many amperes will a 100-W lamp draw on a 110-V line?

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Applied Physics

ISBN: 978-0132109277

10th Edition

Authors: Dale ewen, Neill schurter, P. erik gundersen

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