Question

Explain ohm's law ( from driftvelocity)??

Answer 1

In physics a drift velocity is the average velocity attained by 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 resistive material 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,} u=\mu E

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Answer 2

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