An electromagnetic wave of frequency \( 100 \, \text{MHz} \) propagates through a medium of conductivity, \( \sigma = 10 \, \text{mho/m} \). The ratio of maximum conduction current density to maximum displacement current density is ____________.
[Take \( \dfrac{1}{4\pi \varepsilon_{0}} = 9 \times 10^{9} \, \text{N m}^{2}/\text{C}^{2} \)]