Two wires of same length and same material have raddi of r1 and r2 .

compare their 1)resistances 2) restivities

Question

Two wires of same length and same material have raddi of r1 and
r2
compare their 1)resistances 2) restivities

Shubham Johri · Accepted Answer

Since their material is same, resistivity is also same
R=rho×l/a
R1=rho× l/pie r1^2
R2= rho×l/pie r2^2
R1/R2= r2^2/r1^2