How can I transfer files from iTunens U on my computer to my iTunes U application on iPhone

Hi emelihor,

Welcome to the Support Communities!

iTunes U is one of the items you can sync with your computer using the iTunes application.

Click on the link below to see details and screen shots.

iOS: Syncing with iTunes

http://support.apple.com/kb/HT1386

I hope this information helps ....

Have a great day!

- Judy