Question:medium

A sphere of capacitance \(100\,\text{pF}\) is charged to a potential of \(100\,\text{V}\). Another identical uncharged metal sphere is brought in contact with the charged sphere, then the change in the total energy stored on these spheres, when they touch is \(\alpha \times 10^{-7}\,\text{J}\). The value of \(\alpha\) is _____. (combined capacitance of spheres is \(200\,\text{pF}\)).

Updated On: Apr 12, 2026

\(5\)
\( \frac{5}{2} \)
\( \frac{7}{2} \)
\( \frac{9}{2} \)

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The Correct Option is B

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