A fully charged capacitor has a capacitance $‘C’$. It is discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity $‘s’$ and mass $‘m’$. If the temperature of the block is raised by ‘$\Delta T$’, the potential difference $‘V’$ across the capacitance is
AIEEE 2005, Medium
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(b) $\frac{1}{2}C{V^2} = m.s.\Delta T$ $==>$ $V = \sqrt {\frac{{2ms\Delta T}}{C}} $
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