Question

we use dash to test the conductivity of a material
pls tell the ans​

Answer 1

Calculate the electrical conductivity from the resistance, length and area of the current. The resistivity is given as p = RA/l where p is the resistivity, R is the resistance, A is the area and l is the length. The conductivity is s = 1/p where s is the conductivity.

Answer 2

Answer:

We use conductance or resistance to test the conductivity of a material.

conductance = σ(A/L)

resistance = ρ(L/A)