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 : aftr 30 years of experience. Today I understood the concept of capacitor
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