What would be the maximum cost of a CFL such that the total...

Name: Problem 52, Chapter 20: College Physics for AP® Courses
Uploaded: 2019-08-18T11:20:46-08:00
Duration: 1 min 32 s
Channel: Ze-Han Lee
Description: 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.

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.

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Key Concepts

Life Cycle Cost Analysis

This concept involves evaluating the total cost associated with a product over its entire life span, combining both the initial purchase price and the ongoing operating costs such as energy consumption. It is essential for comparing products like CFL and incandescent bulbs, where differences in efficiency and longevity can affect overall expenses.

Electricity Consumption and Cost Calculation

This concept relates to determining the energy usage of a device by converting its power rating (measured in watts) into energy consumption (measured in kilowatt-hours) over a specified period, then multiplying by the cost per kilowatt-hour to calculate the operating cost. It underpins the analysis of how much it costs to run different lighting options over time.

Break-even Analysis

This concept is used to determine the point at which the total costs of two different options become equal. In the context of lighting, it involves calculating how much can be spent on a more efficient light source (such as a CFL) so that its higher initial cost is offset by lower operating costs over a given period, compared to a less efficient alternative like an incandescent bulb.

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