derive an expression for drift velocity of electron in a conductor. hence deduce ohm's law
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Electrons inside the conductor move along straight line and and there remains randomly oriented. The net moment remains zero. But when electric field is set up inside the conductor, when the electrons accelerated uniformly in the direction opposite to electric field.
Thus,
The average of velocities attained by various electrons in the influence of electric field is called as Drift velocity.
Refer to the above attachment.
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