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The plates of a parallel-plate capacitor...

The plates of a parallel-plate capacitor have an area of `90cm^2` each and are separated by 2.5 mm. The capacitor is charged by connecting it to a 400V supply.
View this energy as stored in the electrostatic field between the plates and obtain the energy per unit volume, `u_E`. Hence, arrive at a relation between `u_E` and magnitude of electric field E between the plates.

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PATHFINDER-ELECTROSTATICS-I, II AND III-QUESTION BANK
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