Question

derive the dimension formula of electrical resistivity

​

Answer 1

Answer:

so, resistivity () = 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 .

Explanation:

mark as brainlist