Thank you for reporting, we will resolve it shortly
Q.
The quantities $R C$ and $(L / R)$ (where $R, L$ and $C$ stand for resistance, inductance and capacitance respectively) have the dimension of
Physical World, Units and Measurements
Solution:
$R C=\operatorname{ohm} \times$ farad $=\operatorname{ohm} \times \frac{\text { coulomb }}{\text { volt }}$
$=\frac{\text { volt }}{\text { ampere }} \times \frac{\text { coulomb }}{\text { volt }}=\frac{\text { volt }}{\text { ampere }} \times \frac{\text { ampere } \times \text { second }}{\text { volt }}$
$=$ second $=[ T ]$
$\frac{L}{R}=\frac{\text { henry }}{\text { ohm }}=\frac{\text { ohm } \times \text { second }}{\text { ohm }}=$ second $=[ T ]$
Both $R C$ and $\frac{L}{R}$ have the dimensions of time.