1) Find the expression for the resistivity of material.
Answers
Answered by
0
Answer:
As we know resistance can be expressed as R∝1/A
⇒R=ρ×1/A
where ρ= resistivity of the material
l= length of the material
A= cross-sectional area of the conductor
Hence the resistivity of the conductor can be written as ρ=RA/I
The SI unit of resistivity is Ω−m
Similar questions