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(B) In an $A.C.$ circuit,the relationship between current $(I)$ and voltage $(V)$ can be represented by a Lissajous figure in a $I-V$ plot.For a purel

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Current leads the voltage by about $90^o$

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(B) In an $A.C.$ circuit,the relationship between current $(I)$ and voltage $(V)$ can be represented by a Lissajous figure in a $I-V$ plot.For a purely capacitive circuit,current leads voltage by $90^o$.For a purely inductive circuit,current lags voltage by $90^o$.In the given graph,the $x$-axis represents current and the $y$-axis represents voltage.As time progresses (indicated by the arrow),the curve traces an ellipse.At the point where the current is maximum (on the $x$-axis),the voltage is zero and increasing.This indicates that the current reaches its peak before the voltage reaches its peak.Therefore,the current leads the voltage by approximately $90^o$.

The graph shows current $v/s$ voltage in a series $RLC$ $A.C.$ circuit. The arrow indicates the direction that this curve is drawn as time progresses. In this plot,the

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