Q2 Consider two parallel plate capacitors, with air as dielectric medium and with capacitance C1 = 10 pF and C20=pf connected to a DC voltage source that keeps constant the

potential difference v=100v as shown in figure 2 a dielectric slab with relative permittivity er=15 is inserted in c1 filling the air gap Calculate the charge accumulated by the described arrangement of capacitors before and after the insertion of the dielectric slab.( (b)Calculated the change in the charge accumulated by C2.[2] (c)Calculate the potential difference between the plates of C1 before and after the insertion of the dielectric slab.[6] (d)Calculate the energy stored in the described arrangement of capacitor Sbefore and after the dielectric slab insertion.[6] (e)Calculate the energy provided by the power supply (the DC sourceV) [5]