AIIMS2001PhysicsUnits and Dimensions
Dimension of resistivity is
Options
- AML ^2 ~T ⁻² ~A ⁻¹
- BML ^3 ~T ⁻³ ~A ⁻²
- CML ^3 ~T ⁻² ~A ⁻¹
- DML ^2 ~T ⁻² ~A ⁻² .
Correct answer
C. ML ^3 ~T ⁻² ~A ⁻¹
Step-by-step solution
By definition aligned R & = l A & = R A l = V I A l = V A I l [ ] & = [V][A] [I][l] & = ML ^2 ~T ⁻² ~L ^2 AL ^2 = [ ML ^3 ~T ⁻² ~A ⁻¹ ] aligned