Solving a problem in physics section 70 point 3 electr

Solving a problem in physics section 70 point 3 electr

3. A flat air condenser with a plate area of 100 cm2 and a gap of 5 mm is charged up to a potential difference of 900 V. Without disconnecting from the voltage source, the plates are pushed apart to a distance of 1 cm between them. Determine the electric field strength, energy and volumetric energy density of the capacitor before and after the expansion of the plates.

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