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Grade 12Electrostatics

Why the soap bubble expands on giving charge

Profile image of sunil sahu
15 Years agoGrade 12
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1 Answer

Profile image of bibhash jha
15 Years ago

There is an electrostatic pressure acting on any charged conductor. This effect can be visualized by charging up soap bubbles: the additional electrostatic pressure eventually causes them to expand

 

The electrostatic pressure can also be written

\begin{displaymath} p = \frac{\epsilon_0}{2} E^2, \end{displaymath}

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