Home
Class 12
PHYSICS
A conductor is at T kelvin. Find the t...

A conductor is at T kelvin. Find the thermal speed of free electrons of the conductor .

Text Solution

Verified by Experts

`(v= sqrt((3kT)/(m))) `
`KE = (1)/(2) mv^(2) = ( 3)/( 2) kT`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION-A(OBJECTIVE TYPE QUESTIONS))|69 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION-B(OBJECTIVE TYPE QUESTION ))|44 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION-J|10 Videos

  • COMMUNICATION SYSTEMS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION D (Assertion-Reason)|10 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-D)|10 Videos

Similar Questions

Explore conceptually related problems

Mobility of free electrons in a conductor is

What do you mean by thermal motion of free electrons in conductors ?

What are the possible paths of free electrons inside the conductor ?

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 current of 10 A is mainatained 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 .

Explain how electrons flow in a conductor?

A potential difference of 30V is applied between the ends of a conductor of length 100 m and resistance 0.5Omega . The conductor has a uniform cross-section. Find the total linear momentum of free electrons.

Define relaxation time of the free electrons drifting in conductor. How is it related to the drift velocity of free electrons? Use this relation to deduce the expression for the electrical resistivity of the material.

A potential difference of 10 V is applied across a conductor of resistance 1 k Omega . Find the number of electrons flowing through the conductor in 5 minutes.

A substance with less number of free electrons is said to be good conductor.

AAKASH INSTITUTE ENGLISH-CURRENT ELECTRICITY-Try Yourself
  1. Charge through a cross-section of a conductor is given by Q = 5t^(2) -...

    Text Solution

    |

  2. If l(1),l(2) and l(3) are the orders of the currents through our nerv...

    Text Solution

    |

  3. A conductor is at T kelvin. Find the thermal speed of free electron...

    Text Solution

    |

  4. How does electric current flow along a conductor , when electric field...

    Text Solution

    |

  5. Resistance of a conductor of length l and area of cross-section A is R...

    Text Solution

    |

  6. When a 40 Vm^(-1) electric field produced inside a conductor then 2 xx...

    Text Solution

    |

  7. Drift speed of electrons is of the order of 10^(-3) m//s, but current ...

    Text Solution

    |

  8. Mobility of free electrons in a current carrying conductor is proport...

    Text Solution

    |

  9. Find the resistance of the following carbon resistor.

    Text Solution

    |

  10. The alloys constantan and manganin are used to make standard resistanc...

    Text Solution

    |

  11. The instant at which a bulb is switched on, its power is maximum , th...

    Text Solution

    |

  12. Find the resistance across AB.

    Text Solution

    |

  13. Find the resistance across AB.

    Text Solution

    |

  14. Current l in the network shwon in figure is

    Text Solution

    |

  15. Potential difference across AB in the network shown in figure.

    Text Solution

    |

  16. Maximum current produced by a cell of emf 10 V and internal resistan...

    Text Solution

    |

  17. When the positive and negative electrodes of a cell are denoted as P ...

    Text Solution

    |

  18. About internal resistance of a cell , the correct statements that it i...

    Text Solution

    |

  19. Find the current through the 10 Omega resistance connected across AB

    Text Solution

    |

  20. Four identical cells each having emf E and internal resistance r are c...

    Text Solution

    |