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[" A current (I) flows through a uniform...

[" A current (I) flows through a uniform wire of diameter (d) when the mean driff 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 "],[[" (A) "V/4,(B)V/2," (C) "4V," (D) "2V]]

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