D₁ # R₁ www D₂ R3 R₂ Reverse Biased D1 Forward Biased Reverse Biased D2 lo Forward Biased 0.7V Assume R₁ = R₂ = R3 = 5k0, V₁ = 5V, and V₂ = 15V for the above circuit. The diodes' IV characteristics are also shown above. Based on the IV characteristic plots, what are the cut-off voltages of D1 and D2? VD1,cutoff [V] VD2,cutoff [V]

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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.