Context: When there is a potential difference across the conductors (e.g., when a capacitor is attached across a battery), an electric field develops across the dielectric, causing positive charge +Q to collect on one plate and negative charge −Q to collect on the other plate. If a battery has been attached to a capacitor for a sufficient amount of time, no current can flow through the capacitor. However, if a time-varying voltage is applied across the leads of the capacitor, a displacement current can flow.

Question: When does an electric field develop across the dielectric?
Answer: When there is a potential difference across the conductors

Question: Under what condition can a displacement current flow in a capacitor?
Answer: if a time-varying voltage is applied across the leads

Question: What is an example of when there exists a potential difference across the conductors? 
Answer: when a capacitor is attached across a battery

Question: What happens to the current when a battery has been attached to a capacitor for an adequate amount of time?
Answer: no current can flow through the capacitor

Question: How do charges accumulate on each plate of a capacitor after an electric field has developed across the dielectric?
Answer: positive charge +Q to collect on one plate and negative charge −Q to collect on the other

Question: When does an electric field not develop across the dielectric?
Answer: Unanswerable

Question: Under what condition does a displacement current never flow in a capacitor?
Answer: Unanswerable

Question: What is an example of when there exists a similarity across the conductors?
Answer: Unanswerable

Question:  How do charges stop accumulating on each plate of a capacitor after an electric field has developed across the dielectric?
Answer: Unanswerable

Question: hat happens to the current when a battery has been attached to a capacitor for an inadequate amount of time?
Answer: Unanswerable