# Why does an increase in drift velocity decrease electron collision?

The original statement is "The drift velocity of electrons in a metallic wire will decrease, if the temperature of the wire is increased.". My understanding is, the temperature of a wire increases because of electron collision which increases it's resistivity.

But, if drift velocity is the speed at which electrons collide, shouldn't electron collision increase with drift velocity?

• I think the causality is the other way around: more collisions means lower drift velocity. Jut think of an electron being freely accelerated by a potential difference in empty space and no collisions. Commented Jul 30, 2022 at 12:33
• @hyportnex Thanks for clearing my doubt, please post your comment as an answer. It genuinely helped me. Commented Jul 30, 2022 at 12:59

A reasonable analogy here would be like trying to bike through a parking lot (cold wire) vs. bike across a busy street (hot wire). If you increase the speed at which you bike in either scenario, you increase the chance of hitting a car. But going fast in a parking lot could certainly lead to fewer collisions than going slow across a busy road. It all depends on the what you're holding constant (hint: in this case it probably the $$\vec{E}$$ field)