JIPMER2011PhysicsUnits and Dimensions
The physical quantity having the dimensions [ M ⁻¹ ~L ⁻³ ~T ^3 ~A ^2 ] is
Options
- Aresistance
- Bresistivity
- Celectrical conductivity
- Delectromotive force
Correct answer
C. electrical conductivity
Step-by-step solution
Resistivity, = m n e^2 aligned [ p ] & = [ M ] [ L ⁻³ ][ AT ]^2[ ~T ] & = [ ML ^3 ~A ⁻² ~T ⁻³ ] aligned So, electrical conductivity = 1 [ ]= 1 [ ] = [ M ⁻¹ ~L ⁻³ ~A ^2 ~T ^3 ]