A composite conductor 10 m long consists of an inner core of steel of radius 1.5 cm and an outer sheath of copper whose thickness is 0.5 cm. Take the resistivities of copper and steel as 1.77 x10-8 and 11.8 x10-8Ω respectively. Determine the resistance of the conductor.

Q: diameter of 10 mm. The inductance of the cable is 4 × 10-7 H/m. Ignoring inductance due to internal…

A: Diameter of core = 10 mm Inductance of the cable (L) = 4 × 10−7 H/m Relative permeability (µr) = 1…

Q: Lecture One Electrical Circuits I Asst.Lect.Faten Imad Ali Example 4 A copper conductor has its…

A:

Q: 3. A two conductor main A B, 500 m in length is fed from both ends at 250 volts. Loads of 50 A, 60…

A: The solution can be achieved as follows.

Q: 4. The value of a at OdegC of a conductor is 1/236 per ind the value of a 18degC.

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.