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Q.
The current graph for resonance in $LC$ circuit is
NTA AbhyasNTA Abhyas 2022
Solution:
In LC circuit, if $X_{L}=X_{C}$ then $\omega =\frac{1}{ \, \sqrt{L C}}$
$I_{0}=\in fty, \, \, so \, \, Z=\frac{E_{0}}{I_{0}}=0,$ As $\frac{1}{ \, \sqrt{L C}}$ 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 AC circuit. then the amplitude of current becomes infinite due to zero impedance.