In an `RC` circuit while charging, the graph of `1n i` versis time is as shown by the dotted line in the diagram figure. Where `i` is the current. When the value of the resistance is doubled, which of the solid curve best represents the variation of `1n i` versus time A. PB. QC. RD. S

In an `RC` circuit while charging, the graph of `1n i` versis time is

1.	In an `RC` circuit while charging, the graph of `1n i` versis time is as shown by the dotted line in the diagram figure. Where `i` is the current. When the value of the resistance is doubled, which of the solid curve best represents the variation of `1n i` versus time A. PB. QC. RD. S
Answer» Correct Answer - B `q= CE(1-e^(-t//RC))` `I = (dq)/(dt) = E/R e^(-t//RC)` `1n I = 1n(E)/R = t/(RC)` `1n I V//s t` will be straight line with -ve slope and positive intercept `Slope = -(1)/(RC)`, intercept = `1n(E/R)` When resistance is doubled, intercept decrease and slope increase.

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In an `RC` circuit while charging, the graph of `1n i` versis time is as shown by the dotted line in the diagram figure. Where `i` is the current. When the value of the resistance is doubled, which of the solid curve best represents the variation of `1n i` versus time A. PB. QC. RD. S

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