Q3: Is it preferable to have an insulating material with a high tand or a low tand use in :(1) Low voltage cables, and (2) High voltage cables? Give reasons for your answer.

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Q: Proposesome method to quantize the quality of a thermos insulation.

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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.