3. Consider the following capacitors under charge constant condition.

(a) Plot E, V through the capacitor, one with a dielectric slab and the other with a metal slab. The

rest of the space is filled with vacuum. Let V = 0 be defined at the right capacitor plate. Pay

special attention to making sure the different regions on the plots line up with the schematic.

(a) Which capacitor has the higher maximum E value? Justify your answer.

(b) Which capacitor stores more total internal energy? Justify your answer.