> "It's like driving on a gravel road versus driving on a freeway," de Heer said. "It's more efficient, it doesn't heat up as much, and it allows for higher speeds so that the electrons can move faster."
Does it allow for higher speeds? I thought resistance increases the number of collisions the electrons make with the molecules in the material, heating up the material, does it actually change the "speed of electricity"? If anything, I would think it might actually increase, similar to water in a smaller pipe (see current formula below). Either way, I don't know if this (possible) change in speed is in any way significant when it comes to computing.
I = NeAVd
Where Ne is the number of free/conduction electrons per unit volume,
A is the cross sectional area of the wire, and
Vd is is the drift velocity.
Does it allow for higher speeds? I thought resistance increases the number of collisions the electrons make with the molecules in the material, heating up the material, does it actually change the "speed of electricity"? If anything, I would think it might actually increase, similar to water in a smaller pipe (see current formula below). Either way, I don't know if this (possible) change in speed is in any way significant when it comes to computing.
I = NeAVd
Where Ne is the number of free/conduction electrons per unit volume, A is the cross sectional area of the wire, and Vd is is the drift velocity.