Compare the energy consumption of two commonly used items in the household. Calculate the energy used by a 1.00 kW toasteroven, Wtoaster , which is used for 5.20 minutes, and then calculate the amount of energy that an 11.0 W compact fluorescent light(CFL) bulb, Wight, uses when left on for 9.00 hours.kWhWtoasterkWhWight =

Q. Given information Power consumed by toaster Pt = 1.00 kW Power consumed by bulb Pb = 11.0 W

Answered: Compare the energy consumption of two…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter9: Energy In Nonisolated Systems

Section9.9: Power

Problem 9.6CE

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What would be the maximum cost of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60-W bulbs? Assume the cost of the incandescent bulb is 25 cents and that electricity costs 10 cents/kWh, Calculate the cost for 1000 hours, as in the cost effectiveness of CFL example.
A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?
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