Question

What is the dimensional formula of resistivity?​

Answer 1

!! RAM RAM !!

ANSWER==

where, R= resistance, A= area of cross-section, l= length *provided the material has Uniform geometrical dimensions

Original Formula: R= ρ(l/A), where ρ is a proportionality constant.

hope it helps uh

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Answer 2

Resistance = $\rho$ l/A

so, resistivity ($\rho$) = RA/L

Resistance (R) = V/I

V = Work done /charge

So, Resistance = Work done/charge /Current

= [ML²T-²]/[TA]/[A]

= [ML²T-³A-²]

Resistivity = Resistance × Area of cross section /Length

= [ML²T-³A-²][L²]/[L]

=[ML³T-³A-²]

This is the required dimensional formula .