an electric circuit has a current of 15,4 mA and a source voltage of 20 Vdc, the total resistance is   a. 1300 ohms b. 1500 ohms c. 1800 ohms d. 2000 ohms

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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.