1yes of course..... electric current is produced due to electric field.....in the absence of electric field, no electric will exist...
Everyone of you might have read that the electric field inside the conductor is 0 as the free electrons migrate to the surface of the conductor..... but how does the electric current exist inside the conductor. Electric current is produced only due to the flow of charge. Net charge inside the conductor is zero and hence zero electric field. Can you please explain this contradiction???????????
-
UP 0 DOWN 0 0 4
4 Answers
11When there is no potential difference (ie the electrostatic condition) there is no electric field inside the conductors and the electrons or charges will be moving in random direction because of their own thermal energy. This thermal energy depends upon the temperature of the conductor. But still the average velocities of electrons is zero because there is no particular direction of motion and all the charges cancel each other's velocity.
When you apply a potential difference across the conductor (ie the electrodynamic condition) still there is no electric electric field inside the conductor but there is an potential difference across the conductor which produces an external electric field due to which -ve charges start flowing in direction of electric field and +ve charges in opposite direction .The net charge inside is zero but now the average velocity is not zero because now all electrons are flowing in direction of electric field only. So due to flow of these electrons a current is developed in the conductor.
66@venkatesh and @vaibhav
The electric field in a conductor is zero only under equilibrium conditions. When current is flowing there is no electrostatic equilibrium.
11so when the current flows there is an electric field inside conductor???
1