Question

derive drift velocity

Answer 1

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of its speed and direction of motion (e.g. 7001166666666666666♠60 km/h to the north). Velocity is an important concept in kinematics, the branch of classical mechanics that describes the motion of bodies.

Answer 2

*Metallic conductors have large numbers of elctrons free to move about.These elctrons which are free to move are called conduction electrons

*Thus valence electrons of atom becomes the conduction electrons of the metals

*At room temperature,these conduction electrons moves randomly inside the conductor more or less like a gas molecule

*During motion,these conduction electrons collide with ions(remaining positive charged atom after the valence electrons move away) again and again and there direction of motion changes after each and every collision.

*As a results of these collisions atoms moves in a zig-zag path