Cross Sectional Area Of Conductor

Explain how to calculate the approximate cross sectional area of a conductor in circular mils.

Cross sectional area of conductor. 610 40 area of 1 1 4 in. For resistance 8 ohm. Displaystyle ell is the length of the conductor measured in metres m a is the cross section area of the conductor measured in square metres m σ sigma is the electrical conductivity measured in siemens per meter s m 1 and ρ rho is the electrical resistivity also called specific electrical resistance of the material measured in ohm metres ω m.

Find the cross sectional area of a conductor in millimeters squared when the diameter of the conductor is 25 millimeters. R radius of the wire or cable. Commercially available wire cable size as cross sectional area.

Length 1m. The cross sectional area of the conductor and can be expressed as r ρ l a 1. 0 75 mm 2 1 5 mm 2 2 5 mm 2 4 mm 2 6 mm 2 10 mm 2 16 mm 2.

Emt 0437 area of 8 awg xhhw 11 8 12 8 awg xhhw conductors are allowed in this raceway 3568 remaining area 0133 area of 12 awg thhn 26 8 26 12 awg thhn c onductors are allowed in this raceway. The cross section area of a round single wire can be calculated as. Resistance is proportional to the length of the path over which the current is flowing but is inversely propotional to the cross sectional area.

A d2 π 4. Calculation of the cross section a entering the diameter d 2 r. Resistance resistivity x l a resistivity rxa l.

The resistance r is certainly inversely proportional to the area of cross section of a particular conductor. Rho 8 x 1e 6 1 000008 ohm. Rmc 0211 12 area of 10 awg thwn 3568 remaining area 519 60 area of 1 in.