Bathroom fan pull chain switch
New to the forum and have what should be a pretty easy job to do but got a little confused. Have an old style bathroom fan with a pull chain for on/off. I replaced the fan and want to replace the pull chain switch also so its all new. I bought the switch and the electronics guy advised to make sure I spliced the switch into the hot wire. Whats got me confused (excuse me if it is a dumb question) The 2 prong plug from the fan runs into a 2 hole socket in the fan encasement. Both prongs on the plug are the same size (not polarized) I can put the plug in either way and the fan motor spins the same way...so, the question is, which side is the hot side? Doesnt it change depending on how I plug into the socket?