Question

what is drift velocity ? Find its value for a conductor. Derive its relationship with electric Current​

Answer 1

Answer:

In physics, a drift velocity is the average velocity attained 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.

The mobility depends on applied potential difference, length of conductor, number density of charge carriers, current in conductor, area of cross-section of conductor. Q. Though the drift velocity for electrons is small, an electric bulb lights up immediately as we turn the switch on.

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