Home
Class 12
PHYSICS
When a current flows in a conductor, the...

When a current flows in a conductor, the order of magnitude of drift velocity of electrons through it is :

A

`10^(-7)cm//s`

B

`10^(-2)cm//s`

C

`10^(4)cm//s`

D

`10^(10)cm//s`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CURRENT AND RESISTANCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (Linked Comprehension)|5 Videos
  • CURRENT AND RESISTANCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (Matrix-Match)|9 Videos
  • CURRENT AND RESISTANCE

    RESNICK AND HALLIDAY|Exercise Problems|36 Videos
  • CIRCULAR MOTION

    RESNICK AND HALLIDAY|Exercise CHECK POINTS|6 Videos
  • ELASTICITY

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type)|3 Videos

Similar Questions

Explore conceptually related problems

When current flows through a conductor, then the order of drift velocity of electrons will be

When a current flows through a conductor its temperature

When current passes through a conductor,

When the current i is flowing through a conductor, the drift velocity is v . If 2i current is flowed through the same metal but having double the area of cross-section, then the drift velocity will be

A current i is flowing through the wire of diameter (d) having drift velocity of electrons v_(d) in it. What will be new drift velocity when diameter of wire is made d//4 ?

Calculate the current passing through a conductor (made up of Cu) if 1 mole of electrons flows through it in 1 hour.

When no current is passed through a conductor,

If A is the area of cross section of conductor, v_(d) is the drift velocity of electrons and n is the number of electrons per unit volume, then current density through conductor is

RESNICK AND HALLIDAY-CURRENT AND RESISTANCE-Practice Questions (Single Corret Choice Type)
  1. In a copper voltmeter, mass deposite in 30 seconds is 'm' gram. If the...

    Text Solution

    |

  2. The resistivity of a wire

    Text Solution

    |

  3. When a current flows in a conductor, the order of magnitude of drift v...

    Text Solution

    |

  4. Assume that each atom of copper contributes one free electron. Density...

    Text Solution

    |

  5. In an electrical cable there is a single wire of radius 9 mm of copper...

    Text Solution

    |

  6. If n, e, tau, m, are representing electron density charge, relaxation ...

    Text Solution

    |

  7. In which one of the following situations does a conventional electric ...

    Text Solution

    |

  8. A conducting ring of radius R has charge Q distributed unevenly over i...

    Text Solution

    |

  9. A long conductor having charge q, with charge density lambda is moving...

    Text Solution

    |

  10. In an ionic solution, sodium ions (Na^(+)) are moving to the right and...

    Text Solution

    |

  11. When you flip a switch to turn on a light, the delay before the light ...

    Text Solution

    |

  12. The following ligure shows the cross section of a wire. Which of the f...

    Text Solution

    |

  13. A hollow copper tube of 5 m length has got external diameter equal to ...

    Text Solution

    |

  14. A copper wire is fabricated that has a gradually increasing diameter a...

    Text Solution

    |

  15. The magnitude of the electric field within a conducting wire depends o...

    Text Solution

    |

  16. Which one of the following statements concerning the electric field in...

    Text Solution

    |

  17. Wires A and B are identical except that each is made from a different ...

    Text Solution

    |

  18. A conductor of area of cross-section. A having charge carries, each ha...

    Text Solution

    |

  19. How does the resistivity of a metal wire change if either the number o...

    Text Solution

    |

  20. The given figure represents a portion of a wire in a circuit. A curren...

    Text Solution

    |