Wire Geometry
Area A = π r² [m²]
N/A
Calculated ρ
Mean ρ (RA/L):
N/A
Slope (R/L):
N/A
ρ (From Slope):
N/A
Percent Difference:
N/A
Current & Voltage Readings
Fixed lengths L (m). Enter I (A) and V (V) to compute R and ρ.
About Specific Resistance (ρ)
Resistivity ρ = R A / L. Plot R vs L: slope × A = ρ. Slope uses the first two valid points.