The resistance of a copper wire can be calculated by the following formula: Resistance (in 1) = Where p is the resistivity of the material at room temperature (20°C), l is the length of the wire in feet, and A is the cross section area of the wire in CM (circular mil). If the resistivity of the copper wire is 1.723x10-62 CM, what will be the length of the wire if its resistance is 12 Q and a cross section area of 320 CM?

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Q: Calculate the cross-sectional area, in mm2, of a piece of copper wire, 40 m in length and having a…

A:

Q: A silver wire has a resistance of 2.1 22 at 27.5 °C, and a resistance of 2.7 22 at 100 °C. Determine…

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Q: The thickness of a copper wire is measured as 0.00036 inches. Show step by step how to convert the…

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Q: Calculate the cross-sectional area, in mm2, of a piece of copper wire, 40 m in length and having a…

A: Given, l=40 mR=0.25 ohmρ=0.02×10-6 ohm A = ?

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.