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. COUNT 5
QSN1 When does an electric field develop across the dielectric? ANS1 When there is a potential difference across the conductors QSN2 Under what condition can a displacement current flow in a capacitor? ANS2 if a time-varying voltage is applied across the leads QSN3 What is an example of when there exists a potential difference across the conductors?  ANS3 when a capacitor is attached across a battery QSN4 What happens to the current when a battery has been attached to a capacitor for an adequate amount of time? ANS4 no current can flow through the capacitor QSN5 How do charges accumulate on each plate of a capacitor after an electric field has developed across the dielectric? ANS5 positive charge +Q to collect on one plate and negative charge −Q to collect on the other