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Is drift speed of electrons in a conduct...

Is drift speed of electrons in a conductor carrying current the same as the speed of current ?

Text Solution

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No, drift speed of electrons is around `10^-4 m//s`, whereas speed of current is nearly equal to the speed of light in vacuum `(3 xx 10^8 m//s)`.
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Knowledge Check

  • Drift speed v_d of electrons in a conductor varies with the strength of electric field E as per the relation :

    A
    `v_d prop E`
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    `v_d prop 1/E`
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    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark.
    C
    If Assertion is ture statement but Reason is false , then mark
    D
    If both Assertion and Reason are false statements then mark.

  • The drift velocity of free electrons in a conductor is v, when a current i is flowing in it, Ifboth the radius and current are doubled, then the drift velocity will be :

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    C
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