Electric Circuits Homework Help

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SUMMARY

The discussion revolves around calculating the cost of running a 1800 Watt electric oven for 7 hours, with an electricity rate of 10 cents per kilowatt-hour. The correct approach involves converting 1800 Watts to 1.8 Kilowatts, then multiplying by the duration of 7 hours, resulting in a total energy consumption of 12.6 kilowatt-hours. The final cost is calculated by multiplying 12.6 by 10 cents, yielding a total of 126 cents, not 1.26 cents as initially miscalculated.

PREREQUISITES
  • Understanding of power calculations using the formula P=E/t
  • Knowledge of unit conversions from Watts to Kilowatts
  • Familiarity with calculating energy costs based on kilowatt-hour rates
  • Basic arithmetic skills for multiplication and conversion
NEXT STEPS
  • Study the principles of electrical power calculations
  • Learn about unit conversions between Watts and Kilowatts
  • Research how to calculate energy costs based on consumption
  • Explore practical applications of power equations in real-world scenarios
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Students studying electrical engineering, individuals learning about energy consumption, and anyone needing assistance with electrical cost calculations.

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Homework Statement


What does it cost in cents to leave a 1800 Watt electric oven on for 7 hours? Assume that you pay 10 cents for every kilowatt hour which you use.

Homework Equations


Well i don't know if I am supposed to use P=E/t. i don't know how I am supposed to use it

The Attempt at a Solution


Do i not convert 1800 Watts to 1.8 Kilowatts, then multiply 1.8 by 7 hours..which is 12.6 then by .10 cents, which makes the answer 1.26?
It is incorrect though.Thanks for your help.
 
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Wow nvm, i answered it 1.26 cents instead of 126 cents..-.- thanks anyways
 

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