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Consider all possibilities \( [L, R, C \) are non-zero \( ] \)
\begin{tabular}{|l|l|l|l|}
\hline \multicolumn{2}{|c|}{ Column-I } & \multicolumn{2}{c|}{ Column-II } \\
\hline A. & \( \begin{array}{l}\text { In L-R series ac } \\
\text { circuit }\end{array} \) & p. & \( \begin{array}{l}\text { Current lags inductor } \\
\text { voltage by } \pi / 2\end{array} \) \\
\hline B. & \( \begin{array}{l}\text { In R-C series ac } \\
\text { circuit }\end{array} \) & q. & \( \begin{array}{l}\text { Current lags voltage by } \\
\text { an angle less than } \pi / 2\end{array} \) \\
\hline C. & \( \begin{array}{l}\text { In L-C-R series ac } \\
\text { circuit (consider all } \\
\text { possibilities) }\end{array} \) & r. & \( \begin{array}{l}\text { Current leads voltage by } \\
\text { an angle less than } \pi / 2\end{array} \) \\
\hline D. & \( \begin{array}{l}\text { In purely resistive ac } \\
\text { circuit }\end{array} \) & s. & \( \begin{array}{l}\text { Current and voltage are } \\
\text { in phase }\end{array} \) \\
\hline
\end{tabular}
(1) A-(p,q); B-(r); C-(p,q,r,s); D-(s)
(2) A-(q,r); B-(p); C-(p,q,r); D-(q)
(3) A-(r,s); B-(q); C-(q,r,s); D-(p)
(4) A-(s,p); B-(r); C-(p,q,s); D-(r)
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