B5 practical: Factors affecting R (paper)
In this practical a strip of conductivity paper will be used to show how the resistance of a conductor is related to it's length, and cross sectional area. The resistance of a conductor is given by the equation Where ρ = resistivityL = lengthA = Cross sectional area The shape of the piece of conducting paper is a rectangle with thickness t so the cross sectional area is w x t 1. Dependence on A start with one strip...