Question 3: At $0.08 per kilowatt-hour, it costs $1.20 to run a heater for 50 hours from a120-V source. How much current does the heater draw?

First we need to find the power to calculate the current.

Answered: Question 3: At $0.08 per kilowatt-hour,…

Question 3: At $0.08 per kilowatt-hour, it costs $1.20 to run a heater for 50 hours from a 20-V source. How much current does the heater draw?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter2: Electrical Quantities And Ohm’s Law

Section: Chapter Questions

Problem 7RQ: How many watts of heat are being produced by the heating element in Question 6?

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

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