A uniform 2-wire d.c. distributor 500 meters long is loaded with 0.89 ampere/ meter and is fed at one end. If the maximum permissible voltage drop is not to exceed 33 V, find the resistance/meter and cross-sectional area of the distributor conductor. Take p = 1-7 X 10-6 N cm. resistance/meter =, ohms/meter area of cross-section= cm?

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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.