Derived expression for specific resistance of a material
Answers
Answered by
2
Answer:
As we know resistance can be expressed as R∝
A
l
.
⇒R=ρ
A
l
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=
l
RA
The SI unit of resistivity is Ω−m
Similar questions