Compare drift velocity
Asked by | 27th Jul, 2008, 03:59: PM
Using the given formula , take the ratio of drift velocities for two wires
v = e V T / ml ; v = drift velocity , V = pot. difference , t = av. relaxation time , m = electronic mass , l = length
then substitute V = ml i / nae2T
In case of series , current will be same , hance factor, 'i' will get cancelled.
in case of parallel , replace 'i' accordingly , using ohm's law.
Answered by | 28th Jul, 2008, 12:14: AM
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