1. (10 points) The figure shows a capacitor of plate area A = 15.0 cm? and plate separation 2d= 24mm. The left half of the gap is filled with material of dielectric constant K1 = 21.4, K2 =15.6; theright half is filled with material of dielectric constant K3 = 41.6, K4 = 57.3. (a) What is thecapacitance? (b) If a potential difference of V = 50 V is applied across the capacitor, what are thecharge q and the stored energy U in the capacitor.