Physics - EMI/AC Question with Solution | TestHub

In LC circuit, if $X_{\mathrm{L}}=X_C$ then $\omega =\frac{1}{\sqrt{\mathrm{LC}}}$ ${\mathrm{I}}_0\infty ,\text{ so }\mathrm{Z}=\frac{{\mathrm{E}}_0}{{\mathrm{I}}_0}=0$ As $\frac{1}{\sqrt{\mathrm{LC}}}$ is the natural frequency of LC circuit, therefore for an LC circuit if the frequency of applied AC becomes equal to the natural frequency of an $\mathrm{AC}$ circuit then the amplitude of current becomes infinite due to zero impedance.