In 10 minutes, 3000 coulomb of free electrons enter one end of a conductor and 3000 leave the other end. The current is

When a conductor is connected to a source of current, the number of electrons entering at one end of the conductor is equal to the number of electrons leaving the conductor from the other end, per second

In a metal in the solid state, such as a copper wire, the atoms are strongly bound to one another and occupý fixed positions. Some electrons (called the conductor electrons) are free to move in the body of the metal while the other are strongly bound to their atoms. In good conductors, the number of free electrons is very large of the order of 10^(28) electrons per cubic metre in copper. The free electrons are in random motion and keep colliding with atoms. At room temperature, they move with velocities of the order of 10^5 m/s. These velocities are completely random and there is not net flow of charge in any directions. If a potential difference is maintained between the ends of the metal wire (by connecting it across a battery), an electric field is set up which accelerates the free electrons: These accelerated electrons frequently collide with the atoms of the conductor, as a result, they acquire a constant speed called the drift speed which is given by V_e = 1/enA where I = current in the conductor due to drifting electrons, e = charge of electron, n = number of free electrons per unit volume of the conductor and A = area of cross-section of the conductor. A constant potential difference is maintained between the ends of a conductor having nonuniform cross-section. Which of the following quantities will not change along the length of the conductor

In a conductor if 3000 coulomb of charge enters and 3000 coulomb of charge exits in time 10 minute then the current is.

Drift velocity of free electrons when current passes through the conductor is of the order of

What happens to the motions of electrons when the ends of the conductor are connected to the battery ?