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(D) The given graph shows a rectangular hyperbola,which represents an inverse relationship between the two variables,i.e.,$Y \propto 1/X$.From the for

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Electric potential versus capacitance for a constant charge

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(D) The given graph shows a rectangular hyperbola,which represents an inverse relationship between the two variables,i.e.,$Y \propto 1/X$.From the formula for electric potential,$V = Q/C$.For a constant charge $Q$,the potential $V$ is inversely proportional to the capacitance $C$,i.e.,$V \propto 1/C$.This relationship is represented by a rectangular hyperbola where $V$ is on the $Y$-axis and $C$ is on the $X$-axis.Therefore,the graph represents electric potential $(V)$ versus capacitance $(C)$ for a constant charge $(Q)$.

Which physical quantities are represented by $X$ and $Y$ in the given graph? ($Y$ represents the first quantity.)

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