A) \[[{{M}^{-1}}{{L}^{-3}}{{T}^{3}}{{A}^{2}}]\]
B) \[[M{{L}^{-3}}{{T}^{-3}}{{A}^{2}}]\]
C) \[[M{{L}^{-3}}{{T}^{-3}}{{A}^{-2}}]\]
D) \[[{{M}^{-2}}{{L}^{3}}{{T}^{2}}{{A}^{-1}}]\]
Correct Answer: A
Solution :
| [a] Dimensional formula for electrical resistivity,\[\rho =[M{{L}^{3}}{{T}^{-3}}{{A}^{-2}}]\] |
| Dimensional formula for electrical conductivity, \[\sigma =\frac{1}{\rho }\] is \[[{{M}^{-1}}{{L}^{-3}}{{T}^{3}}{{A}^{2}}]\] |
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