A parallel plate capacitor with width 4 cm, length 8 cm and separation between the plates of 4mm is connected to a battery of 20 V. A dielectric slab of dielectric constant 5 having length 1cm, width 4 cm and thickness 4 mm is inserted between the plates of parallel plate capacitor. The electrostatic energy of this system will be......... 
J. (Where 
is the permittivity of free space)
Text Solution
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CHECK THE SOLUTION.
(240)
Energy = 
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