Capacitor is most used component in Electronics. We all seen Capacitor and we know Capacitor Passes AC and blocks DC, Does it really passes electric current.
Answer is Partial YES!
Basic physics says current can not pass through an insulator, As capacitor is two plates separated by an insulator same principle is applicable to the capacitor.
Then How current passes through capacitor, Answer can be found by the Maxwell’s equation. It will take so many months to understand but let’s get easy and shortest way.
The current flows through capacitor is actually a “Displacement Current”
electromagnetic wave can transfer through vacuum with 1 dielectric constant, Similarly Charge up capacitor causes changing in electric field between plates create change in Magnetic field and Magnetic field concept which causes the Displacement Current.
When we talk About Capacitor there are two types of current appears 1. Electric current between metalic part of the capacitor 2. Displacement Current between Two plates separated by the Dielectric material (Dielectric constant higher than 1)
