Nickel chrome wire diameter calculation method?

Nickel-chromium wire resistivity μΩ · m, 20 ℃

1.09 ± 0.05 1.18 ± 0.05 1.11 ± 0.05 1.04 ± 0.05 1.04 ± 0.05

Substitute the following formula can be calculated

Calculation formula: R = ρL / S

Where:

ρ is the resistivity of the substance in ohm meters (Ω. m).

L is the length in meters (m)

S is the cross-sectional area, in square meters (m2)