JEE Main2016PhysicsUnits and DimensionsActual
In the following I refers to current and other symbols have their usual meaning. Choose the option that corresponds to the dimensions of electrical conductivity:
Options
- AM - 1 L - 3 T 3 I
- BM - 1 L - 3 T 3 I 2
- CM - 1 L 3 T 3 I
- DM L - 3 T - 3 I 2
Correct answer
B. M - 1 L - 3 T 3 I 2
Step-by-step solution
R = L σ A σ = L R A = L I A V = L I A w I t = L L 2 I 2 T ML 2 T -2 = M - 1 L - 3 T 3 I 2