said by haroldo:I assumed it would vibrate like my iPhone does when I plug it in (the ringer is set to vibrate)
But the iPad is not a phone so there's no "vibrate" -- the iPad doesn't vibrate for anything else, does it?
But I should think there would be a chime if the volume isn't set to zero and if the hard mute button is off... (compare Settings>>Sounds screens on each, there's no Vibrate section for the iPad).