Question

Calculate the resistivity of an aluminium 1mm, if the resistivity of aluminium is 3.2×10 -8 ohm m and it length is 4km

Answer 1

in the question its given that , resistivity is of aluminium is 3 * 10 ^-8 ohm m

resistivity of the material doesnt change when shape and size changes,it only changes when temperature and nature changes.


resistivity of aluminium is asked in the question , and hence resistivity of aluminium =3*10^-8 ohm m