The charge q on a capacitor varies with volta | vedclass

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(D) The energy stored in a capacitor is given by the work done in charging it. For a capacitor,the charge $q$ is directly proportional to the potentia

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energy stored in the capacitor

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(D) The energy stored in a capacitor is given by the work done in charging it. For a capacitor,the charge $q$ is directly proportional to the potential difference $V$,i.e.,$q = CV$. The graph shows a linear relationship between $V$ and $q$. The area under the $V-q$ graph represents the work done,which is stored as potential energy $U$ in the capacitor. Area of $\Delta OPM = \frac{1}{2} 	imes 	ext{base} 	imes 	ext{height} = \frac{1}{2} 	imes q 	imes V$. Since $U = \frac{1}{2} qV$,the area of $\Delta OPM$ represents the energy stored in the capacitor.

The charge $q$ on a capacitor varies with voltage $V$ as shown in the graph. The area of $\Delta OPM$ represents:

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