Question

Define resistance And restivity. Derive the relation between them mention their SI unit what are the factors on which resistance and restivity depends

Answer 1

I hope it helps.

Explanation:

Resistance is obstruction (mean current is facing problems whiletraveling) in the path of current in any conductor( conductor like a piece of wire).

Resistivity is resistance in unit length per unit area.(mean resistivity is resistance of anything with given length and area)

si unit of resistance is (ohm) or also can be derived from the formula V=IR.

si unit of resistivity is Ohm m-1

as it's formula is [resistivity=Resistance × length/area

so.. it is ohm m-1