Question

Prove that dimensional formula of mobality is ml3t-4a-1

Answer 1

V=uE

where v=drift velocity

u=mobility

E=electric field

u=v/E

[u]=[v]/[E]

E=V/l

[E]=[MLT-²A-¹T-¹]

=[LT-¹]/[MLT-²A-¹T-¹]

=[M-¹T²A]