Solving a problem in physics section 70 point 7 electr

Solving a problem in physics section 70 point 7 electr

7. The capacitance of a flat capacitor is C = 100 pF. Dielectric porcelain (ε = 5). The capacitor was charged to the potential difference U = 600 V and disconnected from the voltage source. What work needs to be done to remove the dielectric from the capacitor?

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)