Question

the resistance of a conductor of length X is R, if its area of cross section is a what is its resistivity, what is its unit.

Answer 1

resistance = resistivity*length/area
thus resistivity =R*a/X
and the unit of resistivity is ohm m

Answer 2

Answer:

Resistivity = (ra)/x

Unit = Ω•m

Explanation:

In usual notation,

Resistivity = (RA)/L

Therefore, resistivity = (ra)/x and unit = Ω•m

Hope it helps :)