What is drift velocity?
Answers
Answer:
Drift velocity is the average velocity arrenged by charged particles such as electrons in a matterial due to an electric field.....
Answer:
here you answer
may it help you
Explanation:
a drift velocity is the average velocityattained by charged particles, such as electrons, in a material due to an electric field. In general, an electron in a conductor will propagate randomly at the Fermi velocity, resulting in an average velocity of zero. Applying an electric field adds to this random motion a small net flow in one direction; this is the drift.
Drift velocity is proportional to current. In a resistivematerial it is also proportional to the magnitude of an external electric field. Thus Ohm's law can be explained in terms of drift velocity. The law's most elementary expression is:
{\displaystyle u=\mu E,}
where u is drift velocity, μ is the material's electron mobility, and E is the electric field. In the MKS system these quantities' units are m/s, m2/(V·s), and V/m, respectively.
When a potential difference is applied across a conductor, free electrons gain velocity in the direction opposite to the electric field between successive collisions, thus acquiring a velocity component in that direction in addition to its random thermal velocity. As a result there is a definite small drift velocity of electrons, which is superimposed on the random motion of free electrons. Due to this drift velocity, there is a net flow of electrons opposite to the direction of the field
follow me .......
may it help you
mark me brianlist
.............