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State Ohm' law and deduce it from the kn...

State Ohm' law and deduce it from the knowledge of drift velocity of free electrons in a conductor carrying current.

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Derive an expression for drift velocity of free electrons in a conductor in terms of relaxation time.

The drift velocity of free electrons in metals is of the order of_______.

Knowledge Check

  • Mobility of free electrons in a current carrying conductor is proportional to

    A
    Relaxation time
    B
    Electric field
    C
    Potential difference
    D
    All 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)`

  • if E denotes electric field in a uniform conductor and v_(d) the corresponding drift velocity of free electrons in the conductor, then which of the following graph is correct

    A
    B
    C
    D

    • Similar Questions

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    Derive an expression for drift velocity of electrons in a conductor. Hence deduce Ohms law.

    Derive an expression for drift velocity of electrons in a conductor. Hence deduce ohm's law.

    Deduce Ohm's law using the concept of drift velocity.

    If the potential difference V applied across a conductor is increased to 2 V with its temperature kept constant, the drift velocity of the free electrons in a conductor will:

    A current of 16 A is made to pass through a conductor in which the number of density of free electrons is 4xx10^(28)m^(-3) and its area of cross section is 10^(-5)m^(2) . The average drift cross section is 10^(-5)m^(2) . The average drift velocity of free electrons in the conductor is

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