An electric hot water heater is used to heat a 20-gallon tank of water from 60°F to 130°F in 100 minutes. a. Determine the wattage rating of the heater unit. b. Assuming that the heater unit is used on a 230-volt, 60 Hz service, find the current in amperes taken by the heater unit and the resistance of the unit.

An electric hot water heater is used to heat a 20-gallon tank of water from 60°F to 130°F in 100 minutes. a. Determine the wattage rating of the heater unit. b. Assuming that the heater unit is used on a 230-volt, 60 Hz service, find the current in amperes taken by the heater unit and the resistance of the unit.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter15: Dryer Outlet, Lighting, And Receptacle Circuits For The Laundry, Powder Room, Rear Entry Hall,and Attic

Section: Chapter Questions

Problem 18R: A residential air-conditioning unit is installed in the attic. a. Is a lighting outlet required?...

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