Question: An isolated capacitor C = 4 F with a potential difference of 300 V is connected in parallel to a second capacitor with C2=

An isolated capacitor C = 4 F with a potential difference of 300 V is connected in parallel to a second capacitor with C2= 3F initially with no charge. 1) What is now the potential difference between the plates of the capacitors? 2) What is the variation of the electrostatic energy? NB Show all the calculations A parallel plate capacitor with capacitance C = 0.6 F is connected and charged to a battery with V = 100V and then isolated. Now, the space in between the plates is filled by 1/3 of dielectric constant k =25. Calculate the variation of the energy stored in the capacitor.

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