Design a simple circuit for a ceramic heater that has three settings of Low, Medium, and High heat must be accomplished with the use of (not one but) two independent switches! no digital circuitry or thermostat may be incorporated in the design. However, incorporation of a “Fuse” is highly recommended. Each heating element will be transferring its heat using one independent fan.

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A: Circuit is given as :

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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.