One way to determine the minimum number of general lighting circuits in a house is to use the following information: each 600 square feet requires one 15-amp general lighting circuit and each 800 square feet requires one 20-amp general lighting circuit. If a house has 2400 square feet of living space, calculate the minimum number of 15-amp and 20-amp general lighting circuits required.

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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.