In the figure shown capacitors A and B of capacitance C each are in steady state. A dielectric slab of dielectric constant K = 2 and dimensions equal to the inner dimensions of the capacitor is inserted in the space between the plates of the capacitor B. Choose  the correct options(s).

 

In the process of inserting the dielectric, the energy in the capacitor A increases by an amount of  $\frac{7C{E}^2}{72}$

In the process of inserting the dielectric, energy of the cell decreases by an amount of  $\frac{C{E}^2}{6}$

Charge on each capacitor will increases by CE / 6

In the process of inserting the dielectric, energy of the cell increases by an amount of  $\frac{C{E}^2}{6}$