Home
Class 10
PHYSICS
n electrons flow through a cross-section...

`n` electrons flow through a cross-section of a conductor in time `t`. If the charge on an electron is `e`, write an expression for the current in the conductor.

Text Solution

Verified by Experts

The correct Answer is:
ne//t
`I = (Q)/(t) = ("ne")/(t)`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRICITY

    PRADEEP|Exercise (Exemplar)Multiple Choice|18 Videos

  • ELECTRICITY

    PRADEEP|Exercise (Mock Test)Sec -A|21 Videos

  • ELECTRICITY

    PRADEEP|Exercise Value Based Question|4 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    PRADEEP|Exercise Mock Test|21 Videos

Similar Questions

Explore conceptually related problems

0.5 C charge passes through a cross-section of a conductor in 5 s . Find the current.

If charge through a cross-section of a conductor at timetis q= 2t^(2) +3t+1 . Find the current at t = 2s.

Knowledge Check

  • Average velocity of free electrons through any cross section of conductor in the absence of electric field inside is

    A
    `10^(-3) m//s`
    B
    ` 3 xx 10^(8) m//s`
    C
    `10^(5) m//s`
    D
    Zero

  • 6xx10^(46) electrons flow through a current-carrying conductor, when connected through an external power supply for 20 s. Find the value of current in the conductor.

    A
    `48xx10^(-25)` A
    B
    `48xx10^(25)` A
    C
    `48xx10^(24)` A
    D
    None of these

  • If n,e,A and v_(d) are free electron density inside conductor , charge of electron , area of cross-section of conductor and drift velocity of free electrons inside conductor, then current l through the conductor is

    A
    `n e A v_(d)`
    B
    `n e^(2) Av_(d)`
    C
    `n ev_(d)`
    D
    `n^(2) e Abar(v) _(d)`

    • Similar Questions

    Explore conceptually related problems

    If 60 coulomb of charge passes through a cross section of a conductor in 4 se, the average current is ____A

    Charge through a cross-section of a conductor is given by Q = ( 2t^(2) + 5t) C . Find the current through the conductor at the instant t = 2 s .

    Charge through a cross - section of a conductor is giveb by Q = (2t^(2) + 5t)C . Find the current through the conductor at the instant t = 2 s.

    If 60 coulomb of charge passes through a cross section of a conductor in 4 sec, the average current is ______A.

    If A is the area of cross section of conductor, e be the charge on the electrons, n be the number of electrons per unit volume and J be the current density then drift velocity of electrons is

    Home
    Profile