Home
Class 12
PHYSICS
A silver wire of radius 0.1 cm carries a...

A silver wire of radius `0.1 cm` carries a current of 2A. If the charge density in silver is `5.86xx10^(28)m^(-3)`, then the drif velocity is

A

`0.2xx10^(-3)ms^(-1)`

B

`0.4xx10^(-4)ms^(-1)`

C

`0.68xx10^(-4)ms^(-1)`

D

`7xx10^(-4)ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Match the columns|4 Videos

  • COMMUNICATION SYSTEM

    DC PANDEY|Exercise Subjective|11 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Medical entrances gallery|25 Videos

Similar Questions

Explore conceptually related problems

There is a current of "4.0A" in a wire of cross-sectional area 10^(-6)m^(2) .If the free electron density in wire is 10^(28)m^(-3) ,the drift velocity is :

A copper wire has a square cross-section, 2.0 mm on a side. It carries a current of 8 A and the density of free electrons is 8 xx 10^(28)m^(-3) . The drift speed of electrons is equal to

Calculate the drift velocity for the electrons in a silver wire which has a radius of 0.1 cm and carries a current of 2 A. Atomic mass of silver=108 and density of silver =10.5xx10^(3) kg//m^(3) .

A wire carrying current of 4A and its cross sectional area 10^(-8)m^(2) .If the free electron density in wire is 10^(28)m^(-3) ,the drift velocity is (in m/s)

There is a copper wire of length 2.2 m, of area of cross-section 2.0sq.mm, carrying a current of 6.0A. If the number density of electrons in copper is 8.5 xx10^(28) m^(-3) , find the time taken by an electron to drift from one end to another end of the wire.

A copper wire of diameter 1.0 mm carries a current of 0.2 A. Copper has 8.4xx10^(28) atoms per cubic metre. Find the drift velocity of electrons, assuming that one charge carrier of 1.6xx10^(-19) C is associated with each atom of the copper.

A current of 10 A is maintained in a conductor of cross-section 1 cm^(2) . If the free electron density in the conductor is 9 xx 10^(28) m^(-3) , then drift velocity of free electrons is

A current 0.5 amperes flows in a conductor of cross-sectional area of 10^(-2) m^2 . If the electron density is 0.3 * 10^(28) m^(-3) , then the drift velocity of free electrons is

A current of 5 A is passing through a metallic wire of cross-section area 4 xx 10^-6 m^2 . If the density of the charge carries in the wire is 5 xx 10^36 //m^3 , the drift velocity of the electrons is.

DC PANDEY-CURRENT ELECTRICITY-Medical entrances gallery
  1. The resistance of the four arms P, Q, R and S in a Wheatstone's bridg...

    Text Solution

    |

  2. An electron revolves in a circule at the rate of 10^(19) rounds per se...

    Text Solution

    |

  3. A silver wire of radius 0.1 cm carries a current of 2A. If the charge ...

    Text Solution

    |

  4. A 1m long wire of diameter 0.31mm has a resistance of 4.2 Omega. If it...

    Text Solution

    |

  5. 24 cells of emf 1.5 V each having internal resistance of 1 Omega are c...

    Text Solution

    |

  6. The temperature coefficient of resistance of the material of a wire is...

    Text Solution

    |

  7. The emf of a cell E is 15 V as shown in the figure with an internal re...

    Text Solution

    |

  8. Copper and carbon wires are connected in series and the combined resis...

    Text Solution

    |

  9. Three conductors draw respectively currents of 1 A, 2 A and 4 A when c...

    Text Solution

    |

  10. The massses of the three wires of copper are in the ratio 1 : 3 : 5. A...

    Text Solution

    |

  11. In the circuit diagram,heat produces in R, 2R and 1.5 R are in the ra...

    Text Solution

    |

  12. Which one of the following electrical meter has the smallest resistanc...

    Text Solution

    |

  13. Two wires of the same materical having equal area of cross-section hav...

    Text Solution

    |

  14. Two bulbs 60 W and 100 W designed for voltage 220 V are connected in s...

    Text Solution

    |

  15. The drift speed of electrons in copper wire of diameter and length l i...

    Text Solution

    |

  16. A potentiometer wire of length 10 m and resistance 10 Omega per meter ...

    Text Solution

    |

  17. If a wire is stretched to four times its length, then the specific res...

    Text Solution

    |

  18. For the circuit shown in figure given below, the equivalent resistance...

    Text Solution

    |

  19. Two resistors of 6 Omega " and " 9 Omega are connected in series to a ...

    Text Solution

    |

  20. A current of 2 A flows in a system of conductor as shown. The potentia...

    Text Solution

    |