PAKKA engineer:
External examiner: to an engineering student :
Why does a capacitor stops DC but allows AC to pass through?
Student :
Sir, capacitor is like this
---| |---
DC comes straight like this
------
& the capacitor stops it.
But AC Goes UP-DOWN-UP-DOWN like this
. --- .
.' '.
----||-----------||------.
'. .'
' --- '
and jumps over the capacitor!
๐๐ฌ๐
External Examiner : After 30 years of experience.. today I understood the concept of capacitor ๐๐๐