Can I buy 14 gauge electrical wire in a shprter length of about 10 foot? That is all I need.

Of course.

I've bought it at Lowes...so I'm pretty sure you can do the same at Depot!👊

My answer is gonna differ a little from Donald's. Yes you can easily buy 14awg THHN (electrical wire) in cut lengths from Home Depot. I've bought all kinds of different cable there over the years, cut to any length I want. Not quite sure why Donald hasn't been able to...

No...ace hardware though