Let $l, r, c$ and $v$ represent inductance, resistance, capacitance and voltage, respectively. The dimension of $\frac {1}{rcv}$ in $SI\,units$ will be
  • A$[LA^{-2}]$
  • B$[A^{-1}]$
  • C$[LTA]$
  • D$[LT^2]$
JEE MAIN 2019, Medium
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