Question

The dimensions of specific resistance (resistivity) are

Answer 1

Dimension of specific resistance ρ is ML3T−1Q−2

Explanation:

The formula relating specific resistance ρ of a conductor to its resistance r is

r=ρlA, where A is area of cross-section.of conductor and l is its length

i.e. ρ=Arl

As dimension of r are ML2T−1Q−2

Therefore dimension of ρ is ML2T−1Q−2×L2L

= ML3T−1Q−2

Answer 2

here is your answer dude ↙️↙️✌️✌️✅✅

DIMENSION = Resistance is directly proportional to length and inversely proportional to area of cross section of conducting material.

Hope this helps you mate ☺️☺️✌️✌️⭐⭐