question_answer

Let l, r, c and v represent inductance, resistance, capacitance and voltage, respectively. The dimension of \[\frac{l}{rcv}\]in SI units will be-                      [JEE Main 12-Jan-2019 Evening]

A) \[[L{{A}^{-2}}]\]

B) \[[L{{T}^{2}}]\]

C) \[[{{A}^{-1}}]\]          

D) \[[LTA]\]

Correct Answer: C

Solution :

[c] For LR circuit, time

For capacitor

So,