Q1) A] Determine the total charge entering a terminal between 1-1 sec and 1-2 sce ifthe current passing the terminal is i-(3r'-t) A.B] An electric heater.consumes 1.8MJ when connected to a 250V supply for 30minutes. Find the rating power of the heater and the current taken from the supply.

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Q1) A] Determine the total charge entering a terminal between 1-1 sec and t-2 sec if the current passing the terminal is i=(3r'-t) A.

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

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter16: Installation Of Heating, Cooling, And Refrigeration Systems

Section: Chapter Questions

Problem 2RQ

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Q1) A] Determine the total charge entering a terminal between 1-1 sec and 1-2 sce if
the current passing the terminal is i-(3r'-t) A.
B] An electric heater.consumes 1.8MJ when connected 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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