The density of free electrons in an arbitrary semiconductor in a given energy band is obtained by considering that there must be an available state in this band and by weighting it with the probability that this state is occupied. a) State the mathematical description of this carrier density, explaining the meaning of each term. b) Considering the conduction band stall, explain why the distribution of carriers as a function of energy is not monotonically increasing (or decreasing) Please explain each step as I'm having trouble in understanding this subject.

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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.