SOLUTION

The conduction time of thyristor in one complete cycle for LC Load is

Conduction time duration of the SCR is given by ${t_0} = \dfrac{\pi }{{{\omega _0}}}$

Resonant frequency for the above circuit is given by

${\omega _0} = \frac{1}{{\sqrt {LC} }}$

π/ωo

${t_0} = \frac{\pi }{{\frac{1}{{\sqrt {LC} }}}}$

${t_0} = \pi \sqrt {LC}$