- #1
kidsasd987
- 143
- 4
We assume that there is no electric field inside the perfect conductor because relaxation time of metal
is very short.
whereas
J=sigma*E
But if this is the case, how can current flow inside the metal?
-Is this because of battery? If there is a battery connected to a metal wire, it will create a potential difference between both ends. And such potential difference is maintained by the battery and that is why there is a current despite of the short relaxation time?
-if that's the case then, applying a strong enough external electric fields can create currents in the conductor, which means there is a certain amount of electric fields inside the conductor?
-Can I understand the concept this way.
"If charge density is constantly created at a faster rate than relaxation time, there is a current inside the metal."
is very short.
whereas
J=sigma*E
But if this is the case, how can current flow inside the metal?
-Is this because of battery? If there is a battery connected to a metal wire, it will create a potential difference between both ends. And such potential difference is maintained by the battery and that is why there is a current despite of the short relaxation time?
-if that's the case then, applying a strong enough external electric fields can create currents in the conductor, which means there is a certain amount of electric fields inside the conductor?
-Can I understand the concept this way.
"If charge density is constantly created at a faster rate than relaxation time, there is a current inside the metal."
Last edited: