Resistance
R = V/I or R = ρL/A.
Calculator
How to use
Resistance
ρ in Ω·m, A cross-section.
Educational use only. Check signs, units, and modeling assumptions (e.g. flat Earth g, no air resistance unless stated).
R = V/I or R = ρL/A.
ρ in Ω·m, A cross-section.
Educational use only. Check signs, units, and modeling assumptions (e.g. flat Earth g, no air resistance unless stated).
Model / formula
R = V/I or R = ρL/A
Result
18.0000 Ω (R = V/I)