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Statement of a problem № 3712

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An air capacitor with plates 1 m2 and 0.01 m apart is charged with 10^(-6) C of electricity. Calculate the change in energy which results when the capacitor is submerged in oil of relative permittivity 2.0.

Solution:
An air capacitor with plates 1 m2 and 0.01 m apart is charged with 10^(-6) C of

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