The unit step response of a series RLC circuit is under damped if
1
\({\left( {\frac{R}{{2L}}} \right)^2} < \frac{1}{{LC}}\)
2
\({\left( {\frac{R}{{2L}}} \right)^2} = \frac{1}{{LC}}\)
3
\({\left( {\frac{R}{{2L}}} \right)^2} > \frac{1}{{LC}}\)
4
None of these