A) \[\text{ }\!\![\!\!\text{ }{{\text{T}}^{\text{2}}}\text{ }\!\!]\!\!\text{ }\]
B) \[\text{ }\!\![\!\!\text{ T }\!\!]\!\!\text{ }\]
C) \[\text{ }\!\![\!\!\text{ }{{\text{T}}^{-2}}\text{ }\!\!]\!\!\text{ }\]
D) \[\text{ }\!\![\!\!\text{ }{{\text{T}}^{-2}}\text{ }\!\!]\!\!\text{ }\]
Correct Answer: C
Solution :
\[\frac{L}{R}\] is the time constant of a L-R circuit. \[\therefore \] Dimension of \[\left( \frac{R}{L} \right)=\] dimension of \[\frac{1}{T}\] \[=[{{T}^{-1}}]\]
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