Answered: In a water heater, the power dissipated…

In a water heater, the power dissipated by the heating element is 1.8 kW when connected to a 120 V line. Its resistance Ris a) 4.0 c) 32.0 Ω e) 24.02. b) 8.0 Ω d) 54.0 Ω

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 12RQ

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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.

Question

In a water heater, the power dissipated by the heating
element is 1.8 kW when connected to a 120 V line. Its
resistance Ris
a) 4.0 2
b) 8.0 Ω
d) 54.0 Ω
c) 32.0 02
e) 24.0 2.

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