Where is the clipdoard on ipad

The iPad clipboard is merely a temporary location for text (or objects) that you “cut” or “copy”. When you “paste”, the last item copied to the clipboard is pasted to the chosen location.

The iOS/iPadOS clipboard is not of itself an accessible location or App - neither does it maintain any kind of history that can be reviewed or edited.

To copy to the clipboard, highlight the text passage, image or object; from the menu, select Copy.

Having copied the text or other item, you can simply “paste” to someplace else. To paste the current clipboard object, touch-and-hold with your finger to expose an action menu; from the menu, tap Paste.

It’s “virtual-only” within memory and unlike MS Windows only holds one entry at a time.

See more usage detail here:

Select, cut, copy, and paste text on iPad – Apple Support (UK)