Ipad suddenly stopped working. Will not switch on

Assuming that the battery isn't empty (and it can take up to 15 minutes of charging before it will respond), then have you tried a soft-reset ? Press and hold both the sleep and home buttons for about 10 to 15 seconds, after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot.

Many thanks solved my problem

This didn't solve my problem. My ipad is fully charge (it was charging when it stopped working). I have connected it to my computer, but nothing happens. Help😢