Electrical resistance and resistors




The following videos from real experiments show how length, conductor cross-section, material and temperature influence the resistance of a metal wire:

Measurement of U, I or R with variable length of a constantan wire

Measurement of the conductor characteristics of constantan with different diameters

Dependence of resistance on conductor cross section

Measurement of the conductor characteristic of constantan, copper and iron Ø 0.2 mm

Dependence of resistance on temperature