Home
Class 12
PHYSICS
Define current density....

Define current density.

Promotional Banner

Topper's Solved these Questions

  • 2018 Solved Paper 1

    OSWAAL PUBLICATION|Exercise Exercise|38 Videos

  • 2018 Solved Paper 4

    OSWAAL PUBLICATION|Exercise Exercise|37 Videos

Similar Questions

Explore conceptually related problems

Define current sensitivity of a moving coil galvanometer.

Define current sensitivity of a moving coil galvanometer.

Define the term current density.

Mention the unit of current density. Say whether current density is a scalar or a vector physical quantity.

A copper wire of 10 ^(-6) m ^(2) area of cross section, carries a current of 2A. If the number of electrons per cubic meter is 8 xx 10 ^(28), calculate the current density and average drift velocity. Given, e 1. 6 xx 10 ^(-19) C)

Distinguish between Current and Current density.

Define current gain at a constant V_("CE") and V_("BE") .

OSWAAL PUBLICATION-2018 Solved Paper 3-Exercise
  1. Who discovered the fact that amber rubbed with wool or silk attracts l...

    Text Solution

    |

  2. Define current density.

    Text Solution

    |

  3. What should be the angle between the velocity vector of the charged pa...

    Text Solution

    |

  4. Write the relation between relative permeability and magnetic suscepti...

    Text Solution

    |

  5. State Lenz's law.

    Text Solution

    |

  6. An elderly person is facing difficulty while reading a book which is a...

    Text Solution

    |

  7. Mention any three application of polaroids

    Text Solution

    |

  8. A graph of stopping potential of a photo sensitive metal with the freq...

    Text Solution

    |

  9. How to get a steady d.c output from the pulsating d.c output of a full...

    Text Solution

    |

  10. Represent a typical analogue signal with a diagram

    Text Solution

    |

  11. Write Coulomb's law in vector form and explain the terms.

    Text Solution

    |

  12. Define relaxation time of conduction electrons. How it depends on the ...

    Text Solution

    |

  13. State and explain Gauss's law in magnetism.

    Text Solution

    |

  14. A coil of self-inductance 2H is carrying a current of 2A. Calculate th...

    Text Solution

    |

  15. What was Marconi's invention in the field of electromagnetic waves? Wh...

    Text Solution

    |

  16. Mention any two methods of increasing the resolving power of a microsc...

    Text Solution

    |

  17. What are isotopes?Give an example.

    Text Solution

    |

  18. A transistor is having a beta equal to 80 has a change in base current...

    Text Solution

    |

  19. Derive an expression for the electric potential energy of a system of ...

    Text Solution

    |

  20. What is a cyclotron? Give the expression for cyclotron frequency and e...

    Text Solution

    |