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A long cylindrical shell of length l and...

A long cylindrical shell of length l and radius a is given a uniformly distributed charge Q on its surface. If the shell is expanded uniformly to a radius b, find the work done by electrical forces in the process of expansion.
`[(lambda^(2)l)/(4pi in_(0))l n(b/a)]`

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PHYSICS GALAXY - ASHISH ARORA-ELECTROSTATICS-Partice Exercise
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