A3 km long awg-6 metallic wire has a resistance of approximately 6ω at 20 °c. what material is it made of?

material is aluminum by the approx value of conductivity

Explanation:

given data

length = 3 km

temperature = 20 °C

metallic wire = AWG-6

resistance = 6Ω

to find out

What material is it made of

solution

we know that AWG - 6 has a diameter of 4.1 mm

so we know resistance R is

R =  

here A is area and R is resistance and l is length so find here σ

σ =

σ =

σ = 3.79 × S/m

so according to table 2-1

material is aluminum by the approx value of conductivity

unlike the threaded fasteners which are used to clamp the machine members, power screws are used to transmit power. common applications of power screws are: screw jacks: to lift weight. lead screw of lathe: for axial movement of tool and its precise positioning.

b. check your rearview mirror

explanation: