During a cold winter night in Boston, a family uses a 1500 W electric space heater with an applied voltage of 110 V to keep warm for 8 hours. Determine the electrical current drawn by the heater, in Amps, and total amount of energy supplied to the heater by electrical work, in kW.h. If electric power is valued at $0.08/ kW.h, determine the cost of operation for the night.

During a cold winter night in Boston, a family uses a 1500 W electric space heater with an applied voltage of 110 V to keep warm for 8 hours. Determine the electrical current drawn by the heater, in Amps, and total amount of energy supplied to the heater by electrical work, in kW.h. If electric power is valued at $0.08/ kW.h, determine the cost of operation for the night.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 27RQ: How many Btu/h would be produced in a 12-kW electricheater?

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