Answered: BJAn electric heater consumes 1.8MJ…

BJAn electric heater consumes 1.8MJ when connècted to a 250V supply for 30 minutes. Find the rating power of the heater and the current taken from the supply.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter27: Service-entrance Equipment

Section: Chapter Questions

Problem 32R

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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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BJAn electric heater consumes 1.8MJ when connècted to a 250V supply for 30
minutes. Find the rating power of the heater and the current taken from the supply.

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