An electrical engineer wants to have a copper wire of resistance that is equal to 10 2. If it initially has a radius of 5mm, how long should the wire be? (resistivity of copper- 1.72 x 10 Nem)

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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.