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What is the order of drift velocity of e...

What is the order of drift velocity of electrons?

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The drift velocity of electrons is of the order of `10^(-3)ms^(-1)`.
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Knowledge Check

  • A conductor wire having 10^(29) free electrons/ m^(3) carries a current of 20 A. If the cross-section of the wire is 1 m m^(2) , then the drift velocity of electrons will be : (e=1.6xx10^(-19)C)

    A
    `1.25xx10^(-4)ms^(-1)`
    B
    `1.25xx10^(-3)ms^(-1)`
    C
    `1.25xx10^(-5)ms^(-1)`
    D
    `6.25xx10^(-3)ms^(-1)`

  • A conductor wire having 10^(29) free electrons/ m^(3) carries a current of 20 A.If the cross-section of the wire is 1 mm^(2) ,then the drift velocity of electrons will be (e= 1.6xx10^(-19)C )

    A
    `1.25xx10^(-4)m s^(-1)`
    B
    `1.25xx10^(-3)m S^(-1)`
    C
    `1.25 xx10^(-5) m s^(-1)`
    D
    `6.25 xx10^(-3)m s^(-1)`

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