Which of the following lamp that will produce a 57.33 lm/W luminous efficacy? a.A 60 W flourescent lamp (and 15 W ballast) that emits 4300 lm of light b.None of these c.A 75 W incandescent lamp that emits 4300 lm of light d.A 75 W flourescent lamp that emits 4300 lm of light e.A 40 W incandescent lamp that emits 505 lm of light

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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.