A few days I was confused when my teacher told me that potential is a scaler quantity but potential difference is a vector quantity... I thought both were scaler quantity... He couldn't convince me... I asked him how the ratio of two scalers can be vector? He couldn't give that answer... However, I saw that in the net there are many people having different opinion... Now the question is what is right? Please explain how it can be vector? And if its scaler then why there's any debate about it being vector?