A current I flows through a uniform wire of diameter d when the mean electron drift velocity is v. The same current will flow through a wire of
diameter d/2 made of the same material if the mean drift velocity of the electron is

Question

Infinity Learn · Accepted Answer

$$j=IAnevd4I$$$$π$$$$d2=nev$$                                   ....$$i16I$$$$π$$$$d2=nev$$'                                   ....iiFrom equations (i) and $$(ii)4I16I=vv$$' ⇒  v'  $$=4v$$

A current I flows through a uniform wire of diameter d when the mean electron drift velocity is v. The same current will flow through a wire of
diameter d/2 made of the same material if the mean drift velocity of the electron is

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A current I flows through a uniform wire of diameter d when the mean electron drift velocity is v. The same current will flow through a wire ofdiameter d/2 made of the same material if the mean drift velocity of the electron is

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A current I flows through a uniform wire of diameter d when the mean electron drift velocity is v. The same current will flow through a wire of
diameter d/2 made of the same material if the mean drift velocity of the electron is