That called "unloading" and a 10x6 prop will almost certainly unload a little i.e. the current will reduce, but usually only slightly. It's impossible to tell how much. But if your motor is not hot when you land then it is unlikely to be damaged.
Just for interest, with very high pitch props e.g. something like 10x10 it possible that a motor may draw MORE current in flight than static but props which are "undersquare" (pitch considerably less than diameter) usually do unload.