[Solved] An air-filled parallel-plate capacitor is connected to a battery and allowed to charge up.Now a slab of dielectric material is placed between the plates of the capacitor while the capacitor is still connected to the battery.After this is done,we find that A)the energy stored in the capacitor had decreased. B)the voltage across the capacitor had increased. C)the charge on the capacitor had increased. D)the charge on the capacitor had not changed. E)None of these choices is true. Anal Stage: A phase in Freud's psychosexual development theory where pleasure is focused on the anal region and issues around control and order arise. Erotic Feelings: Emotions and sensations associated with sexual attraction and desire. Psychosexual Development: A Freudian concept describing how personality develops through stages centered on erogenous zones. Oedipus Complex: A phase in Freudian psychology where a child feels desire for the parent of the opposite sex and jealousy toward the parent of the same sex.