### Electrical Energy Cost CalculationIn a particular area of the country, electrical energy costs $0.18 per kilowatt-hour. (Round your answers, in dollars, to at least two decimal places.)#### (a) Incandescent Light BulbHow much does it cost to operate an old-style incandescent 60.0-W light bulb continuously for 24 hours?$ [____]#### (b) LED Light BulbA modern LED light bulb that emits as much visible light as a 60.0-W incandescent only draws 8.50 W of power. How much does it cost to operate this bulb for 24 hours?$ [____]#### (c) Electric OvenA particular electric oven requires a potential difference of 220 V and draws 20.0 A of current when operating. How much does it cost to operate the oven for 3.90 hours?$ [____]**Explanation for Educational Context:**##### Understanding the Problem:- **Electricity Cost Rate**: The cost of electricity is given as $0.18 per kilowatt-hour (kWh).- **Conversion Factor**: Since appliances’ power ratings are given in watts (W), it’s useful to remember that 1 kilowatt (kW) is equal to 1000 watts (W).##### Steps for Calculation:1. **Convert Power to kilowatts**: - Power (kW) = Power (W) / 10002. **Calculate Energy Consumption**: - Energy consumed (kWh) = Power (kW) × Time (hours)3. **Calculate Cost**: - Cost ($) = Energy consumed (kWh) × Electricity cost rate ($/kWh)**Example Calculation:****(a) Incandescent Light Bulb:**1. Power = 60.0 W = 60.0 / 1000 kW = 0.060 kW2. Energy consumed = 0.060 kW × 24 hours = 1.44 kWh3. Cost = 1.44 kWh × $0.18/kWh = $0.26**(b) LED Light Bulb:**1. Power = 8.50 W = 8.50 / 1000 kW = 0.0085 kW2. Energy consumed = 0.0085 kW × 24 hours

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In a particular area of the country, electrical energy costs $0.18 per kilowatt-hour. (Round your answers, in dollars, to at least two decimal places.) (a) How much does it cost to operate an old-style incandescent 60.0-W light bulb continuously for 24 hours? $ (b) A modern LED light bulb that emits as much visible light as a 60.0-W incandescent only draws 8.50 W of power. How much does it cost to operate this bulb for 24 hours? $ (c) A particular electric oven requires a potential difference of 220 V and draws 20.0 A of current when operating. How much does it cost to operate the oven for 3.90 hours? $

In a particular area of the country, electrical energy costs $0.18 per kilowatt-hour. (Round your answers, in dollars, to at least two decimal places.) (a) How much does it cost to operate an old-style incandescent 60.0-W light bulb continuously for 24 hours? $ (b) A modern LED light bulb that emits as much visible light as a 60.0-W incandescent only draws 8.50 W of power. How much does it cost to operate this bulb for 24 hours? $ (c) A particular electric oven requires a potential difference of 220 V and draws 20.0 A of current when operating. How much does it cost to operate the oven for 3.90 hours? $

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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