In an \( \mathrm{AC} \) circuit, the current lags behind the voltag...

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In an \( \mathrm{AC} \) circuit, the current lags behind the voltage by \( \pi / 2 \). The components of the circuit are
(a) \( R \) and \( L \)
(b) \( L \) and \( C \)
(c) \( R \) and \( C \)
(d) only \( R \)
\( \mathrm{P} \)
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