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The graph shown here figure, shows the v...

The graph shown here figure, shows the variation of the total energy (E) stored in a capacitor against the value of the capacitance (C) itself. Which of the two - the charge on the capacitor or the potential used to 4 charge it is kept constant for this graph ?

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From the graph, it is clear that charge remains constant because then
`E = Q^2/(2C) rArr E prop 1/C and E - C` graph is a hyperbola.
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