94. The area of the plates of a flat air condenser is 100 cm2 and the distance between them is 5 mm. Find what potential difference was applied to the plates of the capacitor, if it is known that 4.19 ∙ 10−3 J of heat was released during the discharge of the capacitor.

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