Home
Class 12
PHYSICS
Derive an expression for drift velocity ...

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

Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT. RESISTANCE AND E.M.F

    MODERN PUBLICATION|Exercise EXERCISE|64 Videos

  • DISPERSION

    MODERN PUBLICATION|Exercise EXERCISE|54 Videos

  • ELECTRIC FIELD

    MODERN PUBLICATION|Exercise EXERCISE|95 Videos

Similar Questions

Explore conceptually related problems

Derive an expressions between drift velocity of elctron and electric current.

Derive an expression for critical velocity using dimensional considerations.

How does drift velocity of electrons in a metallic conductor vary with the rise of temperature?

How much is the drift velocity of electrons?

Give the order of magnitude of drift velocity of electrons in a metal.

State postulates of Bohr’s atomic model.Derive an expression for(a) radius (b) total energy (c) velocity of electron in nth orbit of hydrogen atom.

Define the term resistivity and write its S.I. unit. Derive the expression for the resistivity in terms of number density of free electrons and relaxation time.

Using the concept of free electrons in a conductor, derive the expression for the conductivity of a wire in terms of number density and relaxation time. Hence obtain the relation between current density and the applied electric field E.

MODERN PUBLICATION-ELECTRIC CURRENT. RESISTANCE AND E.M.F-EXERCISE
  1. Define 'relaxation time' in a conductor. Explain how it varies with in...

    Text Solution

    |

  2. What is the effect of temperature on relaxation time in a metal?

    Text Solution

    |

  3. Derive an expression for drift velocity of free electrons in a conduct...

    Text Solution

    |

  4. Define relaxation time of the electrons drifting in a conductor. How i...

    Text Solution

    |

  5. What is drift velocity?

    Text Solution

    |

  6. What are ohmic and non-ohmic resistors? Give one example of each.

    Text Solution

    |

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

    Text Solution

    |

  8. Discuss the various situations, which describe the failure of Ohm's la...

    Text Solution

    |

  9. Resistance of a conductor depends on:

    Text Solution

    |

  10. Resistance of a conductor depends on:

    Text Solution

    |

  11. On what factors resistivity of the material depend?

    Text Solution

    |

  12. Explain how the resistivity of a conductor depends upon relaxation tim...

    Text Solution

    |

  13. Define 'relaxation time' in a conductor. Explain how it varies with in...

    Text Solution

    |

  14. Define the term resistivity and write its S.I. unit. Derive the expres...

    Text Solution

    |

  15. What do you understand by electrical resistivity and give its relation...

    Text Solution

    |

  16. Show that the resistance of a conductor is given by: R = (ml)/(n e^2 t...

    Text Solution

    |

  17. A conductor of length l is connected to a d.c. source of potential V. ...

    Text Solution

    |

  18. Define 'relaxation time' in a conductor. Explain how it varies with in...

    Text Solution

    |

  19. Define resistivity of a conductor. Explain the variation of resistance...

    Text Solution

    |

  20. Define resistivity and state its SI unit. State and explain how to res...

    Text Solution

    |