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!
😐😬😅

External Examiner : After 30 years of experience.. today I understood the concept of capacitor 😂😂😂.