External examiner to an engineering student:
Why does a capcitor block DC but allows AC to pass through?
Student: ''See 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;)
Extrnl:Sala Aaj jaakar mujhe capacitor ka concept samajh mein aaya.
:-D;-D;-D
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